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Question

Which of the following statements relating to given weather phenomena in India is/are correct?
1. When maximum temperature of a station reaches ≥40°C for plains and ≥30°C for hilly regions, it is considered heat wave
2. When minimum temperature of a station is ≤10°C for plains and ≤0°C for hilly regions, it is considered cold wave
Select the answer using the code given below:

This question was previously asked in
CDS 2 2026 Maths Question Paper (13-Sep-2026)
The correct answer is

Both 1 and 2

Both statements accurately describe the India Meteorological Department's criteria for extreme temperature events. A heat wave is declared when a station's maximum temperature reaches at least 40°C in the plains or 30°C in hilly areas, while a cold wave is declared when the minimum temperature falls to 10°C or below in the plains, or 0°C or below in hilly regions. Hence, option (c) is correct.

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