A : Intensive agriculture leads to negative soil pollution.
R : It increases useful mineral contents in top layer of soil.

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

To solve the assertion and reason question, we will analyze both statements provided in the question step by step.

### Step 1: Analyze the Assertion
- The assertion states: "Intensive agriculture leads to negative soil pollution."
- Intensive agriculture involves practices that maximize crop yield, often through the use of chemical fertilizers, pesticides, and monoculture.
- While it can increase food production, it often results in soil degradation, loss of organic matter, and pollution due to the accumulation of chemicals in the soil.
- Therefore, the assertion is **true**.

### Step 2: Analyze the Reason
- The reason states: "It increases useful mineral contents in the top layer of soil."
- Although intensive agriculture may temporarily increase certain mineral contents in the soil due to fertilizers, it generally has a detrimental effect on soil health.
- Intensive farming practices often lead to the depletion of organic matter and can result in soil compaction, erosion, and a decline in overall soil quality.
- Thus, the reason is **false**.

### Step 3: Conclusion
- Since the assertion is true and the reason is false, we conclude that the correct answer is that the assertion is true, but the reason is false.

### Final Answer:
- The assertion (A) is true, and the reason (R) is false.

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