With reference to Heat Waves in India, which of the following statement is incorrect?
1
Heat wave is considered if maximum temperature of a station reaches at least 45°C or more for Plains and at least 35°C or more for Hilly regions.
2
Extended periods of high day and nighttime temperatures create cumulative physiological stress, respiratory and cardiovascular diseases, diabetes mellitus and renal disease
3
In India it typically occur from March to June and in some rare cases, even extend till July
4
It can lead to heat cramps, heat exhaustion, heatstroke and hyperthermia.