UPSC CSE Prelims
Question 32
Which of the following is/are correct inference/inferences from isothermal maps in the month of January ?
- The isotherms deviate to the north over the ocean and to the south over the continent.
- 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 :
View correct answer and explanation
Correct answer: A
Correct Option: A (1 only)
Explanation: In Northern Hemisphere winter, oceans generally remain warmer than adjacent continents; January isotherms bow poleward over oceans and equatorward over land.
Statement / Pair / Item-wise Analysis:
1. Correct/True - Land cools faster than water, explaining the January isotherm pattern.
2. Incorrect/False - The Gulf Stream and North Atlantic Drift are warm currents, not cold ones.
Option-wise Analysis:
A. Correct-includes precisely the true/correct statements or pairs identified above.
B. Incorrect-incorrectly includes 2 (The Gulf Stream and North Atlantic Drift are warm currents, not cold ones.); omits correct item 1 (Land cools faster than water, explaining the January isotherm pattern.).
C. Incorrect-incorrectly includes 2 (The Gulf Stream and North Atlantic Drift are warm currents, not cold ones.).
D. Incorrect-omits correct item 1 (Land cools faster than water, explaining the January isotherm pattern.).