Assertion: Acid rain is harmful for agriculture, trees and plants.
Reason: Acid rain dissolved and washes away nutrient need for the growth of agriculture, trees and plants.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true and the reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Explanation

To analyze the assertion and reason provided in the question, we can break it down into a step-by-step solution.

### Step 1: Understanding the Assertion
The assertion states that "Acid rain is harmful for agriculture, trees, and plants."
- **Explanation**: Acid rain is known to have detrimental effects on various forms of vegetation. It can lead to reduced agricultural productivity and harm the health of trees and plants.

### Step 2: Understanding the Reason
The reason given is that "Acid rain dissolves and washes away nutrients needed for the growth of agriculture, trees, and plants."
- **Explanation**: Acid rain can indeed dissolve essential nutrients in the soil, such as calcium and magnesium, and wash them away. This nutrient depletion can hinder the growth and health of plants and crops.

### Step 3: Analyzing the Relationship
Now we need to analyze the relationship between the assertion and the reason.
- The assertion is true because acid rain is harmful to agriculture, trees, and plants.
- The reason is also true because it explains one of the mechanisms by which acid rain causes harm, specifically through the leaching of nutrients.

### Step 4: Conclusion
Both the assertion and the reason are true, and the reason provides a valid explanation for the assertion.
- Therefore, we conclude that both statements are correct and that the reason supports the assertion.

### Final Answer
Both the assertion and the reason are true, and the reason is a correct explanation of the assertion.

---