Explanation
The concept of
wet-bulb temperature captures the combined effect of
heat and humidity, and a level of
35°C represents a critical threshold beyond which the human body
cannot effectively cool itself through sweating.
Statement I is correct. Rising wet-bulb temperatures are a manifestation of broader
climate change impacts, especially in tropical regions like
Peninsular India. The same warming trends and altered atmospheric dynamics contribute to
extreme weather events such as
intense rainfall (floods),
stronger tropical cyclones, and
prolonged droughts. Thus, while indirect, this statement reflects the wider implications of the climatic conditions associated with high wet-bulb temperatures.
Statement II is correct. This directly captures the core implication. At
35°C wet-bulb temperature, the
evaporation of sweat becomes ineffective, preventing the body from
losing heat. This leads to
life-threatening heat stress, even in shaded or ventilated conditions, affecting both
humans and animals.
Thus, both statements are correct, with Statement II explaining the
physiological danger and Statement I reflecting the
broader climatic context.