Select all the correct answers. which three statements provide reasons that scientists are considering renewable sources of energy?

Answers

Answer 1

The option 1, option 3, and option 4 is correct.

The three statement related to the renewable sources of energy should be clean & non-pollutting, conventional resources, and available in nature.

What is renewable sources of energy?

Renewable energy comes from natural sources that replace themselves more quickly than they are used up. Examples of such sources that are continuously replenished are the sun and the wind. There are many different types of renewable energy available to us.

The most popular renewable energy sources currently are:

Solar energy.Wind energy.Hydro energy.Tidal energy.Geothermal energy.Biomass energy.

Therefore, based on this, we can conclude that the option 1, option 3, and option 4 is correct.

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The complete question is -

Select all the correct answers.

Which three statements provide reasons that scientists are considering renewable sources of energy?

1. Most renewable resources are clean and nonpolluting.

2. Renewable resources can be replenished.

3. Renewable resources are conventional resources.

4. Most renewable resources are easily available in nature.

5. All renewable resources are cost effective.


Related Questions

Because of population growth, systems cannot be expanded fast enough to provide sanitation resources for some families. This is an environmental impact on:

A. Air
B. Energy
C. Land
D. Water

Answers

The answer is going to be C
Answer is c pretty sure

Mitosis is a type of cell division that occurs I. to make more cells so organisms can grow. II. so organisms can replace old or damaged cells. III. when organisms make sex cells for reproduction. IV. only during fetal stages of development.

Answers

Answer: I and II

Explanation:

Trust me

Describe the structure of large bones.

Answers

Answer:

Periosteum, Compact Bone, Spongy Bone, Bone Marrow, Articular Cartilage, Medullary Cavity

Explanation:

Periosteum: The outermost layer of a bone is called the periosteum. It is a tough, fibrous membrane that covers the bone's surface. The periosteum contains blood vessels, nerves, and connective tissue that nourish and support the bone.

Compact Bone: Beneath the periosteum lies a layer of compact bone, also known as cortical bone. Compact bone is dense and hard. It forms the main shaft or diaphysis of the long bone. Its structure consists of multiple layers of tightly packed mineralized matrix called lamellae, which contain collagen fibers. Compact bone provides strength and protection to the bone.

Spongy Bone: The interior of the bone, particularly at the ends and in the middle of long bones, contains spongy bone, also called cancellous or trabecular bone. Spongy bone has a porous, lattice-like structure composed of thin, branching bony plates called trabeculae. The spaces between the trabeculae are filled with bone marrow. Spongy bone helps reduce the weight of the bone while providing support and flexibility.

Bone Marrow: Within the spaces of spongy bone is bone marrow. There are two types of bone marrow: red marrow and yellow marrow. Red marrow is responsible for producing blood cells, including red blood cells, white blood cells, and platelets. Yellow marrow consists mainly of fat cells and serves as a storage site for adipose tissue.

Articular Cartilage: At the ends of long bones, where they articulate with other bones in joints, there is a layer of smooth, slippery cartilage called articular cartilage. It helps reduce friction and absorbs shock during movement, facilitating smooth joint motion.

Medullary Cavity: Within the diaphysis or shaft of the long bone, there is a hollow space called the medullary cavity. The medullary cavity contains bone marrow and serves as a storage site for yellow marrow.

what is the average for a human piens A 2.inc B 4inc C 10 inc D 1 feet

Answers

Answer:

I'm gonna have to go with B 4 inches

Explanation:

it is B cause I'm below average and no one is longer than 10 inches

extravasation of immune cells depends on choose one: a. antibody production by b cells. b. increased permeability of endothelial cell junctions. c. down regulation of selectin proteins on endothelial cells. d. increased vasoconstriction.

Answers

Extravasation of immune cells depends on to choose one:  increased vasoconstriction.

The smallest unit which could stay on its own and that makes up all dwelling organisms and the tissues of the frame. Mobile has 3 main components: the cellular membrane, the nucleus, and the cytoplasm. The mobile membrane surrounds the cellular and controls the materials that go into and out of the mobile. A cell has 3 fundamental parts: the mobile membrane, the nucleus, and the cytoplasm. The cellular membrane surrounds the cell and controls the substances that pass into and out of the mobile. The nucleus is a structure within the mobile that contains the nucleolus and most of the cell's DNA. it's also wherein maximum RNA is made.

Cells offer structure and function for all residing things, from microorganisms to people. Scientists recollect them the smallest form of existence. Cells house the organic equipment that makes the proteins, chemical compounds, and indicators answerable for the whole lot that occurs interior our bodies.

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artist like verrochio completed other pices of work besides paitnitngs and sculptures what did leonardo observe verrochioi create for his patrons

Answers

Andrea del Verrocchio was a Renaissance artist and his workshop produced several extraordinary pieces of art. Besides paintings and sculptures, he also designed works of engineering, metalworking, and architecture, and his work inspired many young artists including Leonardo da Vinci.

Leonardo da Vinci was one of Verrocchio's most promising students and later became a renowned artist. Leonardo joined Verrocchio's studio in his late teens and spent several years observing his master's work, which included painting, sculpture, engineering, and metalworking.

During his apprenticeship, Leonardo observed Verrocchio creating works of engineering and metalworking for his patrons. Verrocchio was a master of many crafts and produced functional objects such as candlesticks, jewelry, and even a bronze statue of David.

David is a biblical character who, according to the Bible, killed the giant Goliath with a single stone from his sling. Verrocchio's bronze David was made for the Medici family, a powerful family in Florence, Italy, and it was one of the earliest life-sized bronze sculptures created in Italy.

The statue was admired by Leonardo, who must have learned a great deal about bronze casting techniques from Verrocchio. In conclusion, Verrocchio was a versatile artist who produced a range of works, from painting and sculpture to metalworking and engineering.

His studio was a school for young artists, including Leonardo da Vinci, who observed Verrocchio's masterful techniques and was inspired to create their own masterpieces.

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Conalan wants to answer the quesionn does phosphrus affect tomato fruit production? Which statement represents a hypothesis that he can test to answer his question

Answers

Answer:

If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.

Explanation:

The available options to the question are:

If phosphorus affects tomato fruit production, then tomatoes that are fertilized with phosphorus will have larger leaves.

If phosphorus affects tomato fruit production, then phosphorus should be added to the soil during planting.

If phosphorus affects tomato fruit production, then adding phosphorus to the soil will make tomatoes taste better.

If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.

The correct answer here would be that "If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes."

The hypothesis represents a tentative statement relevant to the research being carried out. What researchers do during the course of researching is to test the validity of hypotheses with experiments.

Since the main aim of the research is to find out if phosphorus affects tomato fruit production, the relevant hypothesis must effectively address the main aim of the research.

The production of tomato can only be measured from the yield of tomato fruits produced by the tomato plants. If phosphorus does indeed affect tomato fruit production, then the tomato plants that are supplied with the element will produce a higher yield of tomato fruit as compared to the ones without phosphorus.

The cosmetologist must receive _____ instruction in order to properly perform extraction of clogged pores and comedones.

Answers

Cosmetologist should get  hands on instruction in order to properly perform extraction of clogged pores and comedones.

Because providing skin care requires knowledge of facials, cosmetologists should study this subject.services assist consumers in unwinding, and having a fundamental understanding of skin care will let you to give guidance.Knowing the fundamentals will enable you to identify situations where a prescription may be necessary when requested.

understanding the fundamentals will enable you to provide the foundational services in medical care, andYou might find it so enjoyable that you decide to focus on skin care.The most crucial component of facial treatment is skin analysis, which establishes the skin type,ailment, and suggested medical care.

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what was used as evidence to develop the big bang theory and the orgin of the universe

Answers

Answer:

Explanation:

The WMAP survey provides strong evidence that supports the Big Bang theory. The pattern of radiation is similar to what astrophysicists predict it would be if the Universe started from a very dense state and expanded to its present size.

The earliest and most direct observational evidence of the validity of the theory are the expansion of the universe according to Hubble's law (as indicated by the redshifts of galaxies), discovery and measurement of the cosmic microwave background and the relative abundances of light elements produced by Big Bang

an ecologist studied the food web interactions within a small pond. later, he expanded his study to include measurements of carbon and nitrogen flowing through the water and pond sediment as well as the organisms. the ecologist changed from a study of

Answers

The ecologist changed from the study of community ecology to the study of ecosystem ecology

Community vs Ecosystem ecology

Community ecology is a branch of ecology that studies the interaction of different populations of organisms that make up a community and how these populations also interact with the abiotic components of their environment.

Thus, community ecology will study interactions such as food chains or food webs.

Ecosystem ecology, on the other hand, studies the interaction of different communities and how they operate as a system to achieve a kind of balance that is sustainable for every individual within the ecosystem. It involves the study of material cycling and energy flow within the ecosystem.

In other words, for the ecologist to have shifted from studying the food web interactions with a small pond to measuring carbon and nitrogen flowing through the water and pond sediment, they have changed from community ecology to ecosystem ecology.

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Use the chart above to determine which substitution mutation has the potential to cause more damage? Highlight your answer. (2pts) a. Substitution of 3rd N-base to go from CAU to CAC b. Substitution of 3rd N-base to go from UGU to UGC c. Substitution of 3rd N-base to go from UCU to UUU 3. Explain WHY: (3pts)_________________________________________

Answers

Answer:

This question is incomplete

Explanation:

This question is incomplete because of the absence of the chart referred to in the question. However, what appears to be the case is that the three nitrogenous bases represent codons (and the missing chart is the codon chart). The mutation that has the potential to cause more damage will be the one that would change the amino acid formed from the codon change.

A. CAU to CAC: The codons CAU and CAC both form the amino acid histidine and thus is not expected to cause a major damage.

B. UGU to UGC: The codons UGU and UGC both form the amino acid cysteine and thus is not expected to cause a major damage.

C. UCU to UUU: Codon UCU forms the amino acid serine while the codon UUU forms the amino acid phenylalanine. Thus, this eventual change in the amino acid formed has the potential to cause a major damage and thus option C is the correct option.

NOTE that a codon is a sequence of three DNA/RNA nucleotides that corresponds to a single amino acid.

during which phase of meiosis do the sister chromatids separate and head towards opposite poles of the cell?

Answers

The phase of meiosis in which the sister chromatids separate and head towards opposite poles of the cell is referred to as anaphase.

What is Meiosis?

This is referred to as  a type of cell division in which the parent cells divides into four unique daughter cells and are commonly used during gamete production in the body of organisms and also during sexual reproduction.

This is divided into different phases such as prophase, anaphase etc in which the latter is characterized by the  sister chromatids separating and heading towards opposite poles of the cell thereby making it the correct choice.

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The phase of meiosis where sister chromatids separate and head towards opposite poles of the cell is anaphase II.

What is meiosis?

Meiosis is the division of sex cells which results in the production of daughter cells with half the genome size of their parents.

Meiosis has two main stages:

Meiosis IMeiosis II

Each of the stages is then divided into phases such as prophase, metaphase, anaphase, and telophase. During meiosis I, chromatin materials thicken to become thin threads, thick threads, and chromosomes later pair up to form tetrads.

Synapsed chromosomes exchange chromosomal segments in a process known as crossing over. All these happen in prophase I. At metaphase I, the tetrads align at the center of the cell and get engaged by the spindle fiber.

At the end of the day, sister chromatids of the same chromosomes are not separated until in anaphase II while telophase II is where four daughter cells result.

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Hello, I would love to know why do humans cry.

Answers

Answer:

because women(;

Explanation:

Answer:

The answer is at the bottom!! ;)

Explanation:

Humans have to cry because when you cry your body releases endorphins and oxytocin. These natural chemical messengers help relieve emotional distress along with physical pain. In other words, crying is a self-soothing behavior.

Hope this answers your question!! ;)

Rapid lateral flow assays based on the quantification of magnetic nanoparticle labels for multiplexed immunodetection of small molecules: application to the determination of drugs of abuse

Answers

A rapid lateral flow immunoassay

A rapid lateral flow immunoassay is presented that uses carboxyl-modified superparamagnetic nanoparticles as labels that can be quantified by highly sensitive multi-channel electronic readers. The approach is generic in that it is likely to be applicable to numerous small molecules. The method permits both single- and multiplex assays at a point-of-need without sample pretreatment. It is user-friendly and offers attractive characteristics demonstrated here for detection of morphine, fentanyl and methamphetamine in . The competitive immunoassay uses commercially available reagents that do not require special permissions. After migration of sample, the lateral flow test strips are subjected to an alternating magnetic field at two frequencies. The response from the nanolabels is readout at a combinatorial frequency from the entire volume of a porous immunochromatographic membrane by the magnetic particle quantification technique.

application to the determination of drugs of abuse.

Estimating the detection time of a drug in urine is complex because of many different influencing factors and the lack of experimental data. Detection times vary depending on dose and route of administration, metabolism and characteristics of the screening and confirmation assays. Using a cut-off value of 1000 ng/mL, urinary samples can be positive for amphetamine for up to 5 days after intake of the drug.

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What kind of isolation occurs when two populations of birds have different courtship dances?

Answers

Answer: Also known as ethological isolation, behavioral isolation occurs when two populations are capable of interbreeding but don't because of differences in their courtship rituals.

average clutch Size: Two eggs

Predators: Humans, owls, and birds of prey

Main Prey Species: Small fish such as sardines ...

Species: Six

Explanation:

Behavioral isolation occurs when two populations of birds have different courtship dances.

What is Behavioral isolation ?

Behavioral isolation is defined as when a species becomes reproductively isolated from others due to differences in behavior. It is one way in which nature prevents the inbreeding of species through behavioral differences.

This occurs when populations of the same species begin to develop distinct behaviors that are not recognized or preferred by members in another population. An example of behavioral difference is the mating call when two populations of the same species may have slightly different mating calls.

Thus, Behavioral isolation occurs when two populations of birds have different courtship dances.

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Which sentence describes a deletion error that could occur during DNA
replication?
O A. The template strand bunches up, resulting in one or more
nucleotides not being included in the new strand.
OB. The RNA primers are removed from the growing strand and
replaced with incorrect DNA nucleotides.
C. The nucleotides get attached out of order, resulting in the entire
DNA strand being disassembled.
D. The enzyme attaching the nucleotides to the growing strand
removes one or more nucleotides from the template strand.

Answers

The statement that best describes deletion error is The template strand bunches up, resulting in one or more

nucleotides not being included in the new strand. The correct option to this question is A.

DNA replication and errorAn absence of a portion of a DNA molecule during DNA replication results in a deletion mutation. A single nucleotide or an entire chromosome can make up this uncopied portion. A genetic disorder may result from this DNA's loss during replication.A nucleotide is omitted from the replicated strand as a result of a wrinkle that develops on the DNA template strand. This is known as a deletion mutation.Once Replication Mistakes Become Mutations. Those incorrectly matched nucleotides that are still present after mismatch repair undergo irreversible alterations during the subsequent cell cycle. This is so that the cell does not continue to detect them as errors once such faults are established.

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Which is the FALSE statement about this blood pressure measurement? 147/92 A. 92 is the diastolic number. B. 147 is the systolic number. C. This is a high blood pressure measurement. D. This is a normal blood pressure measurement.

Answers

Answer:

The false statement is - option D.

Explanation:

The lower value is known as diastolic number which is the pressure in the arteries when the heart takes rest in between two consecutive heart beats. Diastolic value shows the pressure of arteries when heart fills with blood.

The upper value or number is known as the systolic number, it is the pressure value of arteries of an individual during the contraction of hear. The normal blood person of a health person is range from 80/60mmhg to 120/90 mmhg, above this range is considered as high blood pressure.

Thus, the false statement is - option D.

True or false ? Too much nitrogen and phosphorus can alter the normal flow of nitroge
and phosphorus cycle.

Answers

Answer:

false

Explanation:

false. and did u know foods that carry an enough amount of nitrogen and phosphorus can actually stimulate ur height :)

How much carbon is stored in the atmosphere as CO2? HELP ME LIKE ASAP NO ROCKY

Answers

carbon is stored in very large amounts at about 414 ppm
The concentration of carbon dioxide in Earth’s atmosphere is currently at nearly 412 parts per million (ppm) and rising. This represents a 47 percent increase since the beginning of the Industrial Age, when the concentration was near 280 ppm, and an 11 percent increase since 2000, when it was near 370 ppm.


Vegetation determines the kinds of animals that live in an area because plants?

Answers

Answer:

No, plants don't grow in any area because they know they are going to be eaten by animals.The vegetation is just determined by the climates and the environment. You could have a whole forest in your backyard if it wasn't for structures being build and trees being cut down.

Explanation:

10)
What is point source pollution of an aquatic ecosystem?
A)
pollution of freshwater sources
B)
pollution from many sources that combine into one
pollution that occurs over a wide area; water that runs off from fields,
parking lots, and other land surfaces
D)
pollution that can easily be identified with a single discharge source, such
as an open pipe which drains into a body of water

Answers

Answer:

D

Explanation:

the point if of water pollution can be easily identified

Describe the relationship between DNA,
chromosomes, and genes

Answers

Answer:

★ Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

Explanation:

Hope you have a great day :)

DNA, chromosomes, and genes are the genetic material that define each and every organism. genes are traits that you may or may not inherit. chromosomes are x or y-shaped (things) that can determine if you are male or female and are affected by trisomy 21 or other genetic disorders, DNA is the script of all the genes that will determine what an organism will physically appear as; as well as what disorders or diseases they may inherit.

PLEASE HELP!.............

PLEASE HELP!.............

Answers

Answer:

Insect larvae and shrews

The answer is going to be a

Rebekah is studying a molecule and trying to determine if it is DNA or RNA. Which kind of molecule is she studying?

carbohydrate
protein
nucleic acid
lipid

Answers

Answer:

We know that Dna is contained in the nucleus that were the dna is located.So the answer to your question is nucleic acids.

Explanation:

Hope this Helps and have a nice day everyone!!

Answer:

C

ITS C

Explanation:

THATS ALL

sow a seasonal seed and investigate its germination. write down all the conditions required for its germination.

Please answer correct
i need urgent

Answers

Answer:The conditions required for germination is the proper amount of water, oxygen, temperature, sunlight, PHOTO in water. etc.

Explanation

In the process of translational initiation in bacteria, where does the initiator tRNA first bind to the ribosome?A) to the partial P site on the large ribosomal subunitB) to the partial P site on the small ribosomal subunitC) to the partial A site on the small ribosomal subunitD) to the partial A site on the large ribosomal subunit

Answers

In the process of translational initiation in bacteria, the initiator tRNA first binds C)to the partial A site on the small ribosomal subunit.

In bacteria, ribosomes consist of two subunits: a small subunit and a large subunit. The small subunit is responsible for recognizing the start codon (usually AUG) on the messenger RNA (mRNA) and bringing the initiator tRNA into the ribosome. The large subunit, on the other hand, contains the peptidyl transferase center that catalyzes the formation of peptide bonds during protein synthesis. The small and large subunits come together to form the functional ribosome and ensure that translation is initiated and continued efficiently. The binding of the initiator tRNA to the ribosome starts the process of translation initiation and leads to the formation of the first peptide bond.

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5) Ethan is colorblind. His wife, Edna, is homozygous for the normal color vision allele. If they have
eight children, how many of them would you expect to be colorblind?

Answers

Two of Ethan and Edna's eight children would be carriers of the colorblindness gene (1 in 4 chance), and about six of them would have the normal form of the gene and not be affected by the condition.

What is colorblindness?

Colorblindness is an inherited condition that is caused by a genetic mutation that affects the normal function of the photopigments in the retina of the eye. These photopigments, called cone cells, are responsible for detecting different wavelengths of light, which allows us to see a wide range of colors.

Ethan is colorblind, which means that he has a mutated form of the gene responsible for the normal function of the cone cells. This mutated form of the gene is recessive, which means that a person needs to inherit two copies of the mutant gene (one from each parent) to be affected by the condition. If a person only inherits one copy of the mutant gene, they will be a carrier of the condition but will not be affected by it.

Edna is homozygous for the normal color vision allele, which means that she has two copies of the normal form of the gene and is not a carrier of the colorblindness gene. If Ethan and Edna have eight children, each child has a 1 in 4 (25%) chance of inheriting the colorblindness gene from Ethan. Since Ethan has only one copy of the mutant gene, each child has a 3 in 4 (75%) chance of inheriting the normal form of the gene from Edna.

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HOW AND WHY HAS THE SEA-TURTLE CHANGE?

Answers

Harmful marine debris and oil spills pollute their waters and beaches. Now, climate change is exposing sea turtles to even greater existential threats. ... Warming oceans will change ocean currents, potentially introducing sea turtles to new predators and harming the coral reefs some of them need to survive.

Given the latitudinal differences in sunlight intensity (see Figure 52.3 ), how might you expect the carrying capacity of plant species found at the equator to compare with that of plant species found at high latitudes?

Answers

Considering all other factors to be equal, you would anticipate that a plant species will have a higher carrying capacity in the equator than at high latitudes due to the greater amount of incident sunlight there.

What is Species Diversity?

Diversity is highest when all species are equally plentiful in the area. "Species diversity is defined as the number of different species present in an ecosystem and the relative abundance of each of those species. The three categories of biodiversity are as follows: Genetic Biodiversity. Animal diversity. Biodiversity in the environment.

Why is species diversity important ?

Stability increases with biodiversity in ecosystems, species, and people. For instance, species with several populations that are adapted to a wide range of environments and significant genetic diversity are more likely to be able to withstand disturbances, illness, and climate change.

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Plants have cells, tissues, organs, and systems that allow them to function as complete organisms. Which parts of a plant function as an organ?.

Answers

The organ-like function of leaves makes them a part of a plant.

What is the main function of plants?Find out why plants use photosynthesis, respiration, and transpiration. Plants are significantly different from other species due to their autotrophic lifestyle (self-feeding). Autotrophs are able to synthesize their own sustenance from inorganic materials through a process known as photosynthesis.In addition to using photosynthesis to create food and oxygen, plants actively absorb carbon dioxide from the environment. This is a crucial function for the natural carbon cycle because it enables the recycling of carbon. Animals in the wild can also find shelter and safety in plants.The stamen and pistil, which are essential parts of a flower, carry out the process of seed formation. If the stamens and pistils are both functioning, a flower is said to be perfect.

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Which three are factors a court judge will evaluate to resolve fair use disputes? plz answer properly i need mt grades to be up Twice the sum of a number and 4. question 112 pts highly skilled and less skilled hunters do not belong to different strata in the way that the captains of industry do from you and me in this type of society. the less skilled hunters receive a share of the meat and have the right to be heard on important decisions. this is called? the nurse would include which food substance in the diet plan of an older adult to promote better health? select all that apply. one, some, or all responses may be correct. before leaving for the big city, who had hitlers father considered to be the embodiment of all humanly attainable heights? who was it after he "widened his perspective"? The S in the writing technique called CERS stands for can someone pls draw and label this as it is in a notebook or on a blank leaf The Emperor Penguin is the only penguin species that breeds during the Antarctic winter. It treks 31- 75 miles over the ice to breeding colonies, which may include thousands of penguins. The female lay a single egg, which is then incubated by the male while the female returns to the sea to feed; parents subsequently take turns foraging at sea and caring for their chick in the colony. The average lifespan of the Emperor Penguin is 20 years, although observations suggest that some Emperor Penguins may live to 50 years of age. 5. What is the central idea of this passage? A- The movie, Happy Feet was inspired by Emperor Penguins. B-The male Emperor Penguin sits on the egg while the mother hunts for food. C- Female Emperor penguins lay their eggs in the Antarctic and both male and female take turns caring for the egg until it hatches. D Emperor Penguins live over 50 years. a) P(heads, then P)b) P(tails, then a vowel)2. A coin is tossed, then aletter from the wordINDIANAPOLIS is selected atrandom. Find eachprobability.c) P(tails, then N)d) P(heads, then D or 1) What is the most prominent feature of paranoid personality disorder that makes it sometimes difficult for individuals with this disorder to establish close and long-lasting relationships?. this early hispanic region contained thousands of spanish-speaking people, who although of a different culture became instant american citizens after the mexican cession and gadsden purchase. A purpose of government in the United States is to Write the following equation in slope-intercept form:4x - 3y = 12y = 4/3x - 12y = -4/3x + 3y = 4/3x - 4y = -4x + 12 What is the image of (-7,-2) after a reflection over the y-axis? An airplane is heading east with an airspeed of 300 km/h. The plane encounters a wind from the west at 100 km/h. What is the magnitude of the resultant ground velocity? A cannonball weighing 100 N is shot into a fortress wall. It enters the wall at a velocity of 200 m/s and exits the wall with a velocity of 60 m/2 one second later. What force did the wall exert on the cannonball? Which of the following expressions is a common factor when the expressions x2 9 and x2 5x + 6 are factored? Even though she was deaf and blind, Helen Keller learned to: A couple is financing $185,000 to buy a home. They qualify for a 30-year mortgage at 4% interest compounded monthly. How much will their monthly mortgage payments be?