Assertion: Biofertilisers are preferred to chemical fertilisers.
Reason: Most of the chemical fertilisers are expensive, hazardous and damage the environment.

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 the Reason is false.
D. If both Assertion and Reason are false.

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion:**
- The assertion states that biofertilizers are preferred to chemical fertilizers. This implies that biofertilizers are considered more beneficial for agricultural practices compared to chemical fertilizers.

2. **Understanding the Reason:**
- The reason provided is that most chemical fertilizers are expensive, hazardous, and damage the environment. This statement highlights the drawbacks of chemical fertilizers, which can influence the preference for biofertilizers.

3. **Analyzing Biofertilizers:**
- Biofertilizers are organic substances derived from plant or animal sources. They often contain microorganisms that help in nitrogen fixation, which is essential for plant growth. They improve soil fertility by replenishing nutrients and retaining water content.

4. **Analyzing Chemical Fertilizers:**
- Chemical fertilizers are synthetic products that provide nutrients to plants. However, they can be costly due to production processes and can lead to environmental issues such as soil degradation, water pollution, and loss of soil fertility over time.

5. **Conclusion:**
- Both the assertion and reason are true. Biofertilizers are indeed preferred over chemical fertilizers due to their natural composition and benefits to soil health. The reason correctly explains why chemical fertilizers are less favorable, as they are expensive and harmful to the environment.

6. **Final Statement:**
- Therefore, the correct answer is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.

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