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Consider the following statements.
- Surface current constitute more than the deep-water currents.
- Cold currents are usually found in the west coast in the higher latitudes in the Northern Hemisphere.
- Warm currents are found on the east coast of continents in the low and middle latitudes.
Which of the above statements is/are correct?
- a)1, 3
- b)2, 3
- c)3 only
- d)1, 2
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements. Surface current constitute more tha...
To answer this question, let's analyze each statement one by one:
Statement 1: Surface currents constitute more than the deep-water currents.
This statement is incorrect. Surface currents are mainly affected by wind patterns and tend to move in a circular motion, forming large-scale gyres in the ocean. These currents are relatively shallow and are influenced by the Earth's rotation, as well as the shape of the coastline. On the other hand, deep-water currents, also known as thermohaline currents, are driven by differences in temperature and salinity. These currents are much slower and deeper than surface currents, and they play a crucial role in the global circulation of the oceans.
Statement 2: Cold currents are usually found on the west coast in the higher latitudes in the Northern Hemisphere.
This statement is incorrect. Cold currents are typically found on the west coasts of continents in the lower latitudes, not higher latitudes. This is because of the influence of the Earth's rotation, which causes the surface waters to move away from the equator towards the poles along the western coasts. As these waters move away from the equator, they become colder. Examples of cold currents include the California Current off the west coast of North America and the Benguela Current off the west coast of southern Africa.
Statement 3: Warm currents are found on the east coast of continents in the low and middle latitudes.
This statement is correct. Warm currents are typically found on the east coasts of continents in the low and middle latitudes. This is because the surface waters in these regions are influenced by the prevailing wind patterns, which blow from east to west. As a result, warm waters from the equator are pushed towards the eastern coasts, leading to the formation of warm currents. Examples of warm currents include the Gulf Stream off the east coast of North America and the Kuroshio Current off the east coast of Asia.
In summary, statement 1 is incorrect, statement 2 is incorrect, and statement 3 is correct. Therefore, the correct answer is option C) 3 only.
Statement 1: Surface currents constitute more than the deep-water currents.
This statement is incorrect. Surface currents are mainly affected by wind patterns and tend to move in a circular motion, forming large-scale gyres in the ocean. These currents are relatively shallow and are influenced by the Earth's rotation, as well as the shape of the coastline. On the other hand, deep-water currents, also known as thermohaline currents, are driven by differences in temperature and salinity. These currents are much slower and deeper than surface currents, and they play a crucial role in the global circulation of the oceans.
Statement 2: Cold currents are usually found on the west coast in the higher latitudes in the Northern Hemisphere.
This statement is incorrect. Cold currents are typically found on the west coasts of continents in the lower latitudes, not higher latitudes. This is because of the influence of the Earth's rotation, which causes the surface waters to move away from the equator towards the poles along the western coasts. As these waters move away from the equator, they become colder. Examples of cold currents include the California Current off the west coast of North America and the Benguela Current off the west coast of southern Africa.
Statement 3: Warm currents are found on the east coast of continents in the low and middle latitudes.
This statement is correct. Warm currents are typically found on the east coasts of continents in the low and middle latitudes. This is because the surface waters in these regions are influenced by the prevailing wind patterns, which blow from east to west. As a result, warm waters from the equator are pushed towards the eastern coasts, leading to the formation of warm currents. Examples of warm currents include the Gulf Stream off the east coast of North America and the Kuroshio Current off the east coast of Asia.
In summary, statement 1 is incorrect, statement 2 is incorrect, and statement 3 is correct. Therefore, the correct answer is option C) 3 only.
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Consider the following statements. Surface current constitute more tha...
Ocean currents can also be classified based on temperature: as cold currents and warm currents:
(i) cold currents bring cold water into warm water areas. These currents are usually found on the west coast of the continents in the low and middle latitudes (true in both hemispheres) and on the east coast in the higher latitudes in the Northern Hemisphere;
(ii) warm currents bring warm water into cold water areas and are usually observed on the east coast of continents in the low and middle latitudes (true in both hemispheres). In the northern hemisphere they are found on the west coasts of continents in high latitudes.
(i) cold currents bring cold water into warm water areas. These currents are usually found on the west coast of the continents in the low and middle latitudes (true in both hemispheres) and on the east coast in the higher latitudes in the Northern Hemisphere;
(ii) warm currents bring warm water into cold water areas and are usually observed on the east coast of continents in the low and middle latitudes (true in both hemispheres). In the northern hemisphere they are found on the west coasts of continents in high latitudes.
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Consider the following statements. Surface current constitute more than the deep-water currents. Cold currents are usually found in the west coast in the higher latitudes in the Northern Hemisphere. Warm currents are found on the east coast of continents in the low and middle latitudes.Which of the above statements is/are correct?a)1, 3b)2, 3c)3 onlyd)1, 2Correct answer is option 'C'. Can you explain this answer?
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