Which of the following is/are correct inference/inferences from isothermal maps in the month of January? 1.…

Which of the following is/are correct inference/inferences from isothermal maps in the month of January? 1. The isotherms deviate to the north over the ocean and to the south over the continent. 2. The presence of cold ocean currents. Gulf Stream and North Atlantic Drift make the North Atlantic Ocean colder and the isotherms bend towards the north. Select the answer using the code given below:
  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

Solution

Statement 1 is correct — in January (NH winter), isotherms bend northwards over warmer oceans and southwards over colder continents. Statement 2 is wrong — the Gulf Stream and North Atlantic Drift are WARM currents, and they make the North Atlantic warmer (not colder).

Asked in: UPSC Prelims 2024

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