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Question

A weather balloon rises from sea level to 15 km altitude. The point of the temperature reverse from decreasing to increasing, and reason for this change is:

This question was previously asked in
RRB Group D 2025 Question Paper (18-Aug-2026) (Shift 1)
The correct answer is

At the start of the stratosphere due to ozone absorption of UV

Temperature decreases with height throughout the troposphere. At the boundary where the stratosphere begins, the ozone layer starts absorbing ultraviolet radiation from the Sun, which causes the temperature to start increasing with altitude.

Hence, this is the correct answer.

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