Consider the following statements 1 When the pH of the rain water drops below 5 6 it is called acid ...........

Environment and Ecology Air Pollution

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Consider the following statements

1.When the pH of the rain water drops below 5.6, it is called acid rain.

2.Oxides of nitrogen, sulphur and sodium are mainly responsible for acid rain.

3.Acid rain may contaminate drinking water.

How many of the statements given above are correct?

Only One

Only Two

All Three

None

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Explanation:

Correct: Acid rain is defined as rain with a pH level below 5.6. Normal rainwater is slightly acidic due to the presence of carbon dioxide, which forms carbonic acid in water.

Incorrect: Oxides of nitrogen and sulfur are the main contributors to acid rain, not sodium. These oxides react with water vapor in the atmosphere to form sulfuric and nitric acids.

Correct: Acid rain can lead to the contamination of drinking water sources. It can also damage aquatic life and ecosystems, buildings, and crops.

Therefore, statements 1 and 3 are correct.