Question 1

Consider the following statements: 1. Ocean currents are slow-surface movement of water in the ocean. 2. Ocean currents assist in maintaining the Earth's heat balance 3. Ocean currents are set in motion primarily by prevailing winds 4. Ocean currents are affected by the configuration of the ocean Which of these statements are correct?

Accepted Answer

In the realm of physical geography, ocean currents are vital movements of water on the ocean's surface. These currents play a crucial role in regulating the Earth's heat distribution. Prevailing winds are the primary force behind setting ocean currents in motion, while the ocean's configuration also influences their flow. Therefore, statements 2, 3, and 4 are accurate.

Question 2

At which one of the following positions shown in the diagram will the height of the ocean tide be maximum?

Accepted Answer

The ocean tide will reach its maximum height at position 'M4' in the diagram, as this is the point where the Earth, Moon, and Sun are aligned in a straight line.

Question 3

Consider the following factors: 1. Rotation of the Earth 2. Air pressure and wind 3. Density of ocean water 4. Revolution of the Earth Which of the above factors influence the ocean currents?

Accepted Answer

The factors that influence ocean currents are the rotation of the Earth, air pressure, and wind, as well as the density of ocean water. The revolution of the Earth does not have any impact on ocean currents.

Question 4

Consider the following statements: 1. In the tropical zone the western sections of the oceans are warmer than the eastern sections owing to the influence of trade winds. 2. In the temperate zone westerlies make the eastern sections of oceans warmer than the western sections. Which of the statements given above is/are correct?

Accepted Answer

In the tropical zone, the western sections of the oceans are warmer than the eastern sections due to the influence of trade winds that push warm surface water towards the western side. In the temperate zone, westerlies bring warmer air and water to the eastern sections of oceans, making them warmer than the western sections.

Question 5

Tides occur in the oceans and seas due to which among the following? 1. Gravitational force of the Sun 2. Gravitational force of the Moon 3. Centrifugal force of the Earth Select the correct answer using the code given below.

Accepted Answer

Tides in the oceans and seas are a result of the gravitational forces from the Sun and the Moon, as well as the centrifugal force of the Earth. These forces combined lead to the rise and fall of sea levels.

Physical Geography - Hydrosphere — UPSC Previous Year Questions

Year-wise Distribution

Sample Questions

Physical Geography - Hydrosphere — UPSC Previous Year Questions

Year-wise Distribution

Sample Questions