Ocean trench is formed in the ocean along the subduction zone.
The term "ocean trench" refers to deep, shallow valleys on the ocean. These crevasses are some of the deepest natural locations on Earth and oceanic basins. Ocean trenches exist in every ocean basin on earth, but the Pacific Ocean's "Ring of Fire," which includes active volcanoes and earthquake-prone areas, contains the deepest ones.
Ocean trenches are a result of tectonic activity, which is the shifting of the Earth's lithosphere. Particularly ocean trenches are a feature of convergent plate boundaries, which happen as two or more tectonic plates meet. At various convergent plate boundaries, heavy lithosphere melts or slides under less dense earth's crust to create a trench, a process known as subduction.
Learn more about Subduction Zone here:
https://brainly.com/question/1358208
#SPJ4
what happens as plates diverge at an oceanic ridge?
As plates diverge at an oceanic ridge, a process known as seafloor spreading occurs. This phenomenon is characterized by the creation of new oceanic crust along the divergent boundary.
As the plates move apart, tensional forces within the Earth's mantle cause magma to rise from the asthenosphere, the partially molten layer beneath the lithosphere. The magma intrudes into the gap between the separating plates, forming a long, linear volcanic feature called a mid-ocean ridge.
The magma cools and solidifies upon contact with the cold seawater, forming new crust. This newly formed oceanic crust is composed mainly of basaltic rock. Over time, as more magma rises and solidifies, it accumulates and pushes the older crust away from the ridge axis. This process creates a symmetrical pattern of young, newly formed crust at the ridge and older, denser crust further away.
As the new crust forms, it also records the Earth's magnetic field at the time of its creation. The magnetic minerals within the solidified magma align themselves with the prevailing magnetic field, providing a record of past magnetic reversals. This phenomenon has been instrumental in supporting the theory of plate tectonics.
Learn more about seafloor spreading here:
https://brainly.com/question/12659717
#SPJ4
2. During a given shift at an assembly plant, a crimping line worker has a typical day as follows: 08:00 AM - 08:30 AM - Arrive at plant and attend morning meeting 08:30 AM - 10:00 AM - Assembling parts at crimping machine 10:00 AM - 10:15 AM - Break 10:15 AM-11:30 AM - Assembling parts at crimping machine 11:30 AM - 12:30 AM - Lunch Break 12:30 AM - 02:00 PM - Assembling parts at crimping machine 02:00 PM-02:15 PM-Break 02:15 PM-04:00 PM - Assembling parts at crimping machine From past measurements, the health and safety planner knows that the hourly Leq's of each activity are as follows: Staff meeting and planning room - Leq =45 dB(A) - Crimping Machine - Leq =90 dB( A) - Lunch/Break Room - Leq =60 dB( A) Given these conditions, (a) What is the anticipated Dose percentage for this employee using: (i) the old North American dose standards, and (ii) the European dose standard? (b) What is the 8-hr Leq for the employee? (c) Does this environment pass or fail the requirements for the old North American standard, Europe or the new Ontario standard?
(a) (i) Using the old North American dose standards, the anticipated Dose percentage ≈ 1.26%
(ii) Using the European dose standard, the anticipated Dose percentage ≈ 3.14%
(b) 8-hr Leq for the employee = 68.125 dB(A)
(c) Compliance with standards:
(i) Old North American standard: The environment passes the requirements of the old North American standard.
(ii) European standard:
The European standard sets the maximum permissible exposure at 87 dB(A) for an 8-hour workday.
To calculate the anticipated Dose percentage, 8-hr Leq, and determine if the environment passes or fails the standards, we need to perform the following calculations and comparisons:
(a) Anticipated Dose Percentage:
(i) Using the old North American dose standards:
The old North American dose standard states that the maximum permissible exposure for an 8-hour workday is 90 dB(A). To calculate the dose percentage, we need to compare the time-weighted average (TWA) noise exposure to the maximum permissible exposure. We'll calculate the TWA using the given Leq values and durations for each activity:
TWA = ((Duration1 * Leq1) + (Duration2 * Leq2) + ... + (DurationN * LeqN)) / Total Duration
Total Duration = 8 hours = 480 minutes
Duration1 = 30 minutes = 0.5 hours
Leq1 = 45 dB(A)
Duration2 = 90 minutes = 1.5 hours
Leq2 = 90 dB(A)
Duration3 = 15 minutes = 0.25 hours
Leq3 = 60 dB(A)
Duration4 = 60 minutes = 1 hour
Leq4 = 90 dB(A)
Duration5 = 15 minutes = 0.25 hours
Leq5 = 60 dB(A)
Duration6 = 105 minutes = 1.75 hours
Leq6 = 90 dB(A)
Calculating the TWA:
TWA = ((0.5 * 45) + (1.5 * 90) + (0.25 * 60) + (1 * 90) + (0.25 * 60) + (1.75 * 90)) / 8 = 545 / 8 ≈ 68.125 dB(A)
Dose Percentage = 100 * (TWA / 100)^(1.5 - 90) = 100 * (68.125 / 100)^(1.5 - 90) ≈ 1.26%
(ii) Using the European dose standard:
The European dose standard sets the maximum permissible exposure at 87 dB(A) for an 8-hour workday. We'll perform the same calculations as above, but compare the TWA to 87 dB(A) instead:
TWA = 68.125 dB(A) (calculated above)
Dose Percentage = 100 * (TWA / 100)^(1.5 - 87) = 100 * (68.125 / 100)^(1.5 - 87) ≈ 3.14%
(b) 8-hr Leq for the employee:
The 8-hour Leq represents the equivalent continuous noise level over an 8-hour workday. We can calculate it using the same formula as the TWA:
8-hr Leq = TWA = 68.125 dB(A) (calculated above)
(c) Compliance with standards:
(i) Old North American standard:
The old North American standard sets the maximum permissible exposure at 90 dB(A) for an 8-hour workday. Since the 8-hr Leq is 68.125 dB(A), which is below the maximum permissible exposure, the environment passes the requirements of the old North American standard.
(ii) European standard:
The European standard sets the maximum permissible exposure at 87 dB(A) for an 8-hour workday. Since the 8-hr Leq is 68.125 dB
To know more about standard dose, refer to the link below:
https://brainly.com/question/32367058#
#SPJ11
what characteristics do Quebec and Canada and new Orleans lousiana have in common
Calculate the longitude of a place where the local time is 6:00 AM, when the time is 3:00 PM on Kolkata 88 E.
Agriculture is________
Answer:
Agriculture is the art and science of cultivating the soil, growing crops and raising livestock.
Explanation:
It includes the preparation of plant and animal products for people to use and their distribution to markets.
Agriculture provides most of the world’s food and fabrics. Cotton, wool, and leather are all agricultural products. Agriculture also provides wood for construction and paper products.
These products, as well as the agricultural methods used, may vary from one part of the world to another.
MARK ME AS THE BRAINLIEST ANSWER PLEASE ❤️
Littoral (coastal) states do not end where atlas maps suggest they do. What is the term for the area of water where a coastal state has the right to economic exploration and exploitation of marine resources
Answer:
The correct answer will be "high sea".
Explanation:
Coastal states seemed to have a growing investment in national intelligence and law compliance to preserve and protect their trade as well as underwater assets. Consequently, a compromise was required to preserve the navigational independence on which many international maritime concerns had depended.So that the above would be the correct choice.
1. What were the various myths that Americans created about the mound builders? Why were some of these myths harmful for American Indians? 2. What aspects of the Hopewell and Mississippian cultures defy traditional stereotypes of American Indians living north of Mexico? Explain what they are and why they are significant. 3. Why did Native Americans join the missions? What made the missions so destructive? What specific Spanish actions made the missions oppressive?
1. The various myths that Americans created about the mound builders were that the mound builders were not American Indians, but instead a lost tribe from another continent.
Some said that the mounds were built by European explorers from long before Columbus’s time. These myths were harmful for American Indians as they worked to erase the historical contributions of American Indians to North American culture.2. The Hopewell and Mississippian cultures defy traditional stereotypes of American Indians living north of Mexico in several ways. The Hopewell culture, for example, was a highly developed trading culture that constructed elaborate burial mounds.
The Mississippian culture was marked by large, walled cities with complex social and political structures. These cultures were significant as they showed that American Indians had complex societies with advanced technologies and that North America was not just a “wilderness” waiting to be tamed by Europeans.3. Native Americans joined the missions for various reasons, including the promise of food, clothing, and shelter.
However, the missions were ultimately destructive because they were designed to assimilate Native Americans into European culture and religion. The specific Spanish actions that made the missions oppressive include forced labor, beatings, and whippings, as well as the removal of Native American children from their families and communities to be raised in European-style boarding schools.
To know more about Mound visit
https://brainly.com/question/33204950
#SPJ11
what makes a golden age?
Answer:
LOOK AT THE IMAGE. MARK AS BRAINLIEST!
Please help no spam or stuff or I'll report pls
I live in Nebraska. My house is located 42 degrees 11 minutes of north latitude and 98 degrees, 48 minutes west longitude. What is the correct way to write these coordinates?
Answer:
i think the answer would be
42N11B, 98W48
What is the most common climate/vegetation region in the Middle East
Answer:
The study area includes four of the major vegetation zones found in the Middle East. These are the Mediterranean, Irano- Turanian, Saharo-Arabian and Sudano-Decanian, following Eig (1931/32, 1938) and Zohary (1962, 1968).
What is the most common type of climate in the Middle East?
Mediterranean climate
Although much of the Middle East region has a Mediterranean climate type, i.e. Csa in the widely used Koeppen classification with wet winters and dry summers.
what is the name of an agricultural practice, extremely often used in countries such as the usa, australia or spain, that puts great pressure on the depletion of groundwater storages?
irrigation is the name of an agricultural practice, extremely often used in countries such as the USA, Australia, or Spain, that puts great pressure on the depletion of groundwater storage.
Irrigation involves putting in water using pipelines, canals, turbines, or any other man-made sources as opposed to merely relying on rainfall. In regions with infrequent or erratic rainfall, agriculture cannot be sustained without irrigation.
Various tubes, pumps, and other spraying devices are used to artificially apply water to the soil. Irrigation is widely employed in areas with variable rainfall, prolonged drought, or imminent drought. There are a variety of irrigation techniques available that adequately distribute water throughout the entire area.
Irrigation water is utilized to supplement moisture levels in humid regions and permit crop production in desert climates when growing season rainfall is insufficient. Irrigation has boosted productivity and profitability in farming production.
Learn more about irrigation here:
https://brainly.com/question/29892276
#SPJ4
The eruption at mount st. helens is most similar to which volcanic eruption?
Which of the following are classifications describing how rock and other material move downslope?
Fall,
slide,
slump,
creep,
flow
All of the following are classifications describing how rock and other materials move downslope: Fall, slide, slump, creep, flow
Fall: refers to the free falling of rock or other materials, such as a rockfall.Slide: refers to the downhill movement of rock or other materials along a distinct surface, such as a rockslide.Slump: refers to the downhill movement of rock or other materials along a curved surface, such as a landslip.Creep: refers to the slow downhill movement of rock or other materials caused by gravity, often caused by freeze-thaw cycles, wetting and drying, and other weathering processes.Flow: refers to the downhill movement of rock or other materials in a fluid-like manner, such as a mudflow or debris flow.Learn more about rock and other material move downslope https://brainly.com/question/29425651
#SPJ4
can someone please help me will mark brainliest
Answer:
Its A
Explanation:
G00gle told me, and plus I learned this and took this class
Why did countries attempt to take
over the early kingdoms of
Southeast Asia?
A. high price of elephant tusks
B. use of irrigation systems
C. gain trade control
Answer:
C. Gain trade control.
1. Which has a negative impact on land?
Answer:
c
Explanation:
Which of the following statements best explains how satellite imagery would most likely be used in the field of agriculture?
Select one answer
A. Farmers in developed countries have increasingly used remote sensing to determine crop production estimates.
B. Multinational agribusiness firms use satellite photos to monitor the location of laborers on commercial
plantations.
C. The United States Department of Agriculture uses satellite technologies to determine the precise locations of
dairy farms throughout the country.
D. Satellite images are commonly used to calculate the physiological and agricultural densities within countries.
E. Organic farmers in developed countries frequently use satellite images to monitor the effects of chemical
fertilizers on their crop yields.
Answer:
E
Explanation:
because nowadays we find effects of chemical fertilizers on crop using satellite of which i think it is useful
Satellite imagery is commonly used in agriculture to determine crop production estimates. With remote sensing technologies, farmers can get a comprehensive picture of their farms and accurately estimate crop yields.
Among the provided options, the statement that best explains how satellite imagery could most likely be used in the field of agriculture is 'Farmers in developed countries have increasingly used remote sensing to determine crop production estimates.' (Option A)
Through remote sensing technologies, farmers can accurately estimate their crop yields before harvest time. High-resolution images can give them a comprehensive picture of their farm from above, identifying which areas are thriving and which are in need of attention, tracking changes over time or even predicting future changes based on current trends.
Learn more about Use of Satellite Imagery in Agriculture here:https://brainly.com/question/17489477
#SPJ11
Which of these nations is the LEAST economically developed?
What motives did Pope Urban ll do
On a geologic map, cratonic basins, where thick sequences of sedimentary rocks overly the Precambrian basement, show the _________ rocks toward the center of the basin.
On the geological maps in question, the cratonic basins that contain thick sequences of sedimentary rocks which overly the Precambrian basement, show the youngest rocks toward the center of the basin.
Geological maps are tools created and used by scientists to show the arrangement of the geological elements of a specific area. This can include:
Rock typesCracks and faultsMineralsGroundwaterAgesand much more, depending on the area and detail of the map created.
On a detailed geo-map, we can understand not only the area we are initially standing on but also where to find geological areas with similar sediment compositions and information on the age of the rocks. This is done due to the way the map stacks the units in terms of age, from the youngest at the top to the oldest at the bottom.
Cratonic basins are areas where geological elements are widely distributed and often filled with shallow water as well as sedimentary rocks. The rocks at the center of these basins show the youngest rocks at the center due to the previously mentioned aging sequence used by the maps.
To learn more visit:
https://brainly.com/question/10312561?referrer=searchResults
Explain the relationship between the establishment of early civilizations in river valleys and societal development.
Answer:
Explanation:
The first societies settled near the rivers, since their economy was based mainly on agriculture and they could irrigate crops very well. Also by the rivers came the commercial activity of other cities
8. Why does mitosis, a type of cell division, result in clones? *
O A. because only the dominant traits are passed on.
B. because only the recessive traits are passed on.
о C. because an exact copy of the genes is passed on.
о D. because clones can only produce clones.
Since only the dominant characteristics are passed on, mitosis, a kind of cell division, produces clones.
What transpires during mitosis?A cell divides into two identical daughter cells after duplicating all of its components, including its chromosomes. The phases of mitosis were carefully regulated by certain genes because this procedure is so crucial.
What happens if our body doesn't undergo mitosis?Without mitosis, there wouldn't be any cell division or growth. The fact that genetic information could be passed on is most essential. All cell processes would be significantly impacted.
To know more about mitosis visit :
https://brainly.com/question/29776367
#SPJ1
An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described
Answer:
by its crystal like appearence thus mostly forms near rocky areas
Explanation:
For stages 3 and 4, the correct answers are:
decreases; absorbed
increases; released
decreases; released
increases; absorbed
From your chart of the evolutionary stages of a 25 solar mass star, fill in the blanks for stage #5:
Fusion Stage (type), Fusion Products, Duration of Stage
O; S, Si, Ar; 6 months
O; S, Si, Ar; 1 year
Si; S, O, Ar; 6 months
O; Fe; 1 day
stages 3 and 4 are: decreases; released. In stage 3, the core of the star contracts and heats up, increasing the temperature of the surrounding layers, causing the outer layers to expand. In stage 4, the core temperature is about 100 million Kelvin, allowing helium fusion to occur.Fusion Stage (type), Fusion Products, Duration of Stage for stage #5 are: O; Fe; 1 day. In stage 5, the star fuses iron in its core. However, this fusion process consumes energy instead of releasing it, leading to a sudden collapse of the star's core and a supernova explosion.The evolutionary stages of a 25 solar mass star are:Stage 1: Stellar NebulaStage 2: ProtostarStage 3: Main Sequence (Hydrogen Fusion)Stage 4: Red Giant (Helium Fusion)Stage 5: Supernova (Iron Fusion)Stage 6: Neutron Star or Black Hole (Remnant)Fusion Stage (type), Fusion Products, Duration of Stage for stage #2 are: O; S, Si, Ar; 6 months. Stage 2 is the protostar stage, where the temperature and density of the core increase as the star contracts under the force of gravity. As the core temperature reaches 1 million Kelvin, hydrogen fusion begins, producing helium and releasing energy. This stage lasts for about 6 months.
For more question like Stages the link below:
https://brainly.com/question/31311182
#SPJ11
Do orcas prefer warm or cold water?
Orcas prefer cold water.
These species seem to prefer cooler temperatures, even though they may be discovered in warmer waters close to the equator as compared to arctic waters. Orcas may go to semi-enclosed seas, river mouths, & ice-covered areas in addition to residing in deep ocean waters.
Whales and other marine mammals with warm blood may survive in cold water. Fat acts as an insulating material to assist whales maintain energy and warmth when they dive to freezing depths and cruise across icy seas, like those in Alaska.
Because of the increasing ocean temperatures, the killer whale is migrating further north in search of a new environment in which there are more sources of food and the water is cooler. On the other side, the ecology is negatively impacted over the long term by the movement of the dolphin species.
Learn more about orcas at
https://brainly.com/question/29632392?referrer=searchResults
#SPJ4
Which people would most likely be found in Stage 1 of the DTM (Demographic Transition Model)?
Question 8 options:
a)Auto mechanics
b) Hunters and Gatherers
c) Highly successful businessmen
d) Women in the workforce
Stage 1 of the Demographic Transition Model (DTM) is characterized by high birth and death rates. Therefore, the people who would most likely be found in Stage 1 of the DTM are hunters and gatherers. Here option B is the correct answer.
The demographic transition model (DTM) is a model that explains the transition from a high birth rate, high death rate to a low birth rate, low death rate. Demographic transition refers to the changes that take place over time in a population's birth rate and death rate and the effect these changes have on the population's growth rate. The DTM model has five stages, each of which reflects a different phase of population growth.
The first stage of the DTM is characterized by high birth and death rates. The population size remains stable because births are roughly equal to deaths. In stage 1 of the DTM, life expectancy is short, and infant mortality rates are high. Hence, the people who would most likely be found in Stage 1 of the DTM are hunters and gatherers (Option B).
They are groups that relied on hunting animals and gathering wild plants for subsistence. They lived in small groups and moved from place to place to find food and water.
To learn more about Demographic Transition Model
https://brainly.com/question/28771628
#SPJ11
Uniformitarianism means:________. a. neither the scientific past nor the future can be predicted because physical laws change over time. b. earth's surface, including the oceans and continents, has always been the same and will always remain unchanged. c. geologic processes on Earth all operate at roughly the same speed, which has not changed over time. d. geologic processes that operate today operated in the past at about the same speed.
Answer:
Uniformitarianism means:
d. geologic processes that operate today operated in the past at about the same speed.
Geologists study present geologic processes, whether they are sudden, like an earthquake, or slow, like the erosion of a river valley, to gain insight into the past. This is known as uniformitarianism.
Thus, option D is correct.
Who made uniformitarianism?The theory of uniformitarianism was developed by Charles Lyell in the 19th century and is based on the writings of James Hutton. According to this hypothesis, the forces and processes that can be seen at the surface of the earth are the same ones that have sculpted the planet's terrain throughout natural history.
The belief that the same natural laws and processes that govern the universe today and have always governed it in the past and apply to all of it is known as uniformitarianism, also known as the Doctrine of Uniformity or the Uniformitarian Principle. Today, we accept uniformitarianism as genuine and understand that major catastrophes like earthquakes, asteroids, volcanoes, and floods are a regular part of the earth's cycle.
For more information about uniformitarianism refer to the link:
https://brainly.com/question/28446324
#SPJ2
because spodosols develop in __________ soils, they have __________ clay in the a horizon. group of answer choices A.sandy; a lot of B. sandy; very little C.silty; a lot of D.silty; very little
Answer: A) sandy loam, poorly drained, in the NE USA B) clay loam, well drained, in the SE USA C) clay loam, well drained, in the SE USA D) sandy loam, well drained ...
Explanation:
f(x) = 3x ^ 2 + 12x + 5
what is the discrimination of f ?
how many distinct real number zeros does f (x) have
Answer:2
Explanation:
If a cell contains chloroplasts, it must be what kind of cell?
Answer: plant cells
Explanation:
Answer:
Plant cellExplanation:
Plant cells contain a chloroplast, while other cells do not. The chloroplast allows the plant cell to capture energy and help the process of photosynthesis.