Really grateful to god.. everything from our lectures again even in Sociology Paper-2 (2025) 🙏🙏

Q.1.Which of the following is matched incorrectly ?

Trench : Lowest Point

A. Mariana Trench: Challenger Deep

B. Tonga Trench: Horizon Deep

C. Philippine Trench: Emdeen Deep

D. Peru–Chile Trench: Brownson Deep

Q.2.Consider the following statements :

1. Movement of water caused by meteorological effects (winds and atmospheric pressure changes) are called surges.

2. The time between the high tide and low tide, when the water level is falling, is called the ebb.

3. The time between the high tide and low tide, when the tide is rising, is called the flow or flood.

4. When the tide is channelled between islands or into bays and estuaries they are called tidal currents.

Q.3.With reference to the effects of ocean currents, consider the following statements :

1. West coasts of the continents in tropical and subtropical latitudes (except close to the equator) are bordered by cool waters.

2. West coasts of the continents in the middle and higher latitudes are bordered by warm waters which cause a distinct marine climate.

3. Warm currents flow parallel to the west coasts of the continents in tropical and subtropical latitudes.

4. The mixing of warm and cold currents help to replenish the oxygen and favour the growth of planktons, the primary food for fish population.

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Q.1.With reference to the horizontal distribution of ocean salinity, consider the following statements :

1. Baltic Sea records high salinity due to less influx of river water.

2. The Mediterranean Sea records higher salinity due to high evaporation.

3. The North Sea, in spite of its location in higher latitudes, records high salinity due to more saline water brought by the North
Atlantic Drift.

4. The low salinity trend is observed in the Arabian Sea due to influx of river water.

Q.2.Which of the following factors primarily influence the pattern of planetary winds ?

1. Latitudinal variation of atmospheric heating.

2. Emergence of ocean currents.

3. The migration of belts following the apparent path of the sun.

4. The rotation of Earth.

5. The distribution of continents and oceans.

Q.3.Ocean currents represent a regular volume of water moving in a definite path and direction. The primary forces that influence the movement of ocean currents include :

1. Heating by solar energy
2. Wind
3. Gravity
4. Salinity

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