Consider the following statements about the effects of Thermal Pollution 1 Decrease in dissolved oxy...........

Environment and Ecology Air Pollution

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Consider the following statements about the effects of Thermal Pollution.

1.Decrease in dissolved oxygen content of water

2.Helps in Penetration of oxygen into deep cold waters

3.Increase in the toxicity of pesticides

4.Decrease in Metabolic activities of aquatic organisms

How many of the statements given above are correct?

Only One

Only Two

Only Three

All Four

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Explanation:

The correct statements about the effects of thermal pollution are:

Correct: Thermal pollution typically leads to a decrease in the dissolved oxygen content of water. Warmer water holds less dissolved oxygen than cooler water.

Incorrect: It does not help in the penetration of oxygen into deep cold waters. Rather, thermal pollution can disrupt the temperature stratification of water bodies, potentially leading to reduced oxygen levels in deeper waters.

Correct: Increase in water temperature can increase the toxicity of some pollutants, including pesticides.

Incorrect: Thermal pollution often leads to an increase in metabolic activities of aquatic organisms due to higher temperatures, not a decrease.

Thus, statements 1 and 3 are correct.