Civil Services Prep

Prelims MCQ · Geography

Cold water is denser than warm water, and highly saline water is denser than less saline water. At high latitudes, cold water sinks and moves slowly towards the equator, while warm surface water moves poleward to replace it.

Which one of the following conclusions follows most appropriately?

  1. Vertical ocean circulation is independent of temperature and salinity.
  2. Warm equatorial water sinks and moves towards the poles along the ocean floor.
  3. Cold polar water remains permanently at the surface because low temperature reduces density.
  4. Density contrasts connect deep equatorward movement of cold water with poleward replacement by warmer surface water.
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  3. A physiographic region has the following characteristics: Its principal river flows from northeast to…
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