Assertion : If you burn a plant , its nitrogen component is given off as ammonia and other gases .
Reason : Hydroponics does not allow plants to grow well if they are supplied with all the mineral nutrients they need.

Options

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

Answer

To analyze the given assertion and reason, we will break down the statements step by step.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states: "If you burn a plant, its nitrogen component is given off as ammonia and other gases."
- When a plant is burned, organic compounds, including nitrogen-containing compounds, decompose. This decomposition can release nitrogen in various forms, including ammonia (NH3) and other gases.
- Therefore, the assertion is **true**.

2. **Understanding the Reason**:
- The reason states: "Hydroponics does not allow plants to grow well if they are supplied with all the mineral nutrients they need."
- Hydroponics is a method of growing plants without soil, using mineral nutrient solutions in water. In fact, hydroponics is designed to provide all necessary nutrients to plants for optimal growth.
- The statement in the reason is **false** because hydroponics does allow plants to grow well when they are supplied with the necessary mineral nutrients.

3. **Evaluating the Relationship**:
- Now we need to evaluate the relationship between the assertion and the reason.
- The assertion is true, but the reason is false.
- Since the reason does not correctly explain the assertion, we conclude that the correct relationship is: "A is true and R is false."

4. **Final Conclusion**:
- Based on the analysis, the answer to the question is that the assertion is true, and the reason is false.

### Final Answer:
- The correct answer is: **A is true and R is false**.

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