Assertion: Greenhouse effect was observed in houses used to grow plants and these are made of green glass.
Reason: Greebhouse name has been given because glass are of green glass.

Options

A. (a)If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. (b)If both assertion and reason are true and the reason is not the correct explanation of the assertion.
C. (c )If assertion is true but reason is false.
D. (d)If assertion is false but reason is true.

Explanation

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

### Step 1: Understanding the Assertion
The assertion states that the greenhouse effect was observed in houses used to grow plants, and these houses are made of green glass.

**Analysis**:
- The greenhouse effect refers to the trapping of heat in a structure, allowing for a warmer environment suitable for plant growth.
- Greenhouses are often made of transparent materials (like glass) to allow sunlight to enter while preventing heat from escaping.

### Step 2: Evaluating the Reason
The reason provided is that the name "greenhouse" has been given because the glass used is green glass.

**Analysis**:
- The term "greenhouse" does not originate from the color of the glass used. Instead, it refers to the function of the structure, which is to create a controlled environment for growing plants.
- Greenhouses can be made from various types of glass, including clear glass, and the color does not necessarily have to be green.

### Step 3: Conclusion
- The assertion is true because greenhouses do utilize the greenhouse effect to promote plant growth.
- The reason is false because the name "greenhouse" does not derive from the use of green glass.

### Final Evaluation
- The assertion is true, but the reason is false. Therefore, the correct conclusion is that the greenhouse effect is beneficial for plant growth, but the name does not come from the color of the glass.