UPSC Civil Services 2020 Prelims General Studies Paper I

• Jet streams occur in both hemispheres, but the jet streams in the northern hemisphere are more forceful due to greater temperature gradients. Hence statement 1 is NOT correct.

• A typical tropical cyclone will have an eye of approximately 30–65 km (20–40 mi) across, usually situated at the geometric. Few cyclones do not form eye. Hence statement 2 is correct.

• The temperature in the eye is 10°C warmer or more at an altitude of 12 km than the surrounding environment, but only 0-2°C w center of the storm. Hence statement 3 is NOT correct.

Hence the answer is C. .