Question

UPSC Prelims 2024 Question:

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. 1 only
  2. 2. 2 only
  3. 3. Both 1 and 2
  4. 4. Neither 1 nor 2

Answer (Detailed Solution Below)

Option 1: 1 only

Detailed Solution

Explanation: 

  • In January the isotherms deviate to the north over the ocean and to the south over the continent. This can be seen in the North Atlantic Ocean. The presence of warm ocean currents, Gulf Stream and North Atlantic drift, make the Northern Atlantic Ocean warmer and the isotherms bend towards the north. Over the land, the temperature decreases sharply and the isotherms bend towards the south in Europe.

Therefore, option (1) is the correct answer.

Subject: Geography | Climate Weather and Atmosphere

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