With reference to the Heat Index, consider the following statements:1.The heat index is a useful tool for predicting the risk of heat-related illnesses.2.The heat index measures the level of heat in the atmosphere.3.Relative humidity is an important factor that determines heat index along with air temperature.Which of the statements given above is/are correct?

Q. With reference to the Heat Index, consider the following statements:
1.The heat index is a useful tool for predicting the risk of heat-related illnesses.
2.The heat index measures the level of heat in the atmosphere.
3.Relative humidity is an important factor that determines heat index along with air temperature..
Which of the statements given above is/are correct?:

[A] 1 and 2 only

[B] 1 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: C

Notes:

Explanation –

Statements 1 and 3 are correct. The heat index is a useful tool for predicting the risk of heat-related illnesses. Relative humidity is an important factor that determines heat index along with air temperature.

Statement 2 is incorrect. The heat index is not a measure of how hot the air is, but rather how hot it feels to the body. It also known as apparent temperature and it is a measure of how the temperature feels to humans.

Source: ForumIAS

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