A : High concentration of atmospheric `SO_(2)` and `NO_(2)` causes acid rain.
R : It causes damage to foliage and growing points of plant.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both Assertion & Reason are ture but the reason is not the correct explanation of the assertion, then mark (2).
C. If Assertion is true statement but Reason is false, then mark (3).
D. If both Assertion and Reason are false statements, then mark (4).

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Assertion**: The assertion states that high concentrations of atmospheric sulfur dioxide (SO₂) and nitrogen dioxide (NO₂) cause acid rain. This is indeed true. Acid rain occurs when these gases react with water vapor in the atmosphere, leading to the formation of sulfuric and nitric acids.

2. **Formation of Acid Rain**: When sulfur dioxide and nitrogen dioxide are released into the atmosphere, they can combine with water vapor. This process occurs through chemical reactions that produce acids. When it rains, these acids fall to the ground, resulting in acid rain.

3. **Understanding the Reason**: The reason provided states that acid rain causes damage to foliage and the growing points of plants. This is also true. Acid rain can harm plants by leaching essential nutrients from the soil and directly damaging plant tissues.

4. **Connection Between Assertion and Reason**: The reason given (damage to foliage and growing points of plants) is a direct consequence of the assertion (acid rain caused by SO₂ and NO₂). Thus, the reason correctly explains why the assertion is true.

5. **Conclusion**: Both the assertion and reason are true, and the reason is the correct explanation for the assertion. Therefore, the answer is that both the assertion and reason are true, and the reason is the correct justification for the assertion.

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