Assertion : For greenhouse effect, presence of green plants is not essential.
Reason : Chlorophyll of the green plants causes green house effect.

Options

A. Assertion and reason both are correct statements and reason is correct explanation for assertion.
B. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C. Assertion is correct statement but reason is wrong statement
D. Assertion is wrong statement but reason is correct statement.

Answer

To analyze the given assertion and reason, we can break it down into a step-by-step solution:

### Step 1: Understand the Assertion
The assertion states: "For greenhouse effect, presence of green plants is not essential."
- This means that the greenhouse effect can occur independently of green plants.

### Step 2: Understand the Reason
The reason states: "Chlorophyll of the green plants causes greenhouse effect."
- This implies that chlorophyll, which is found in green plants, is responsible for the greenhouse effect.

### Step 3: Analyze the Greenhouse Effect
- The greenhouse effect is a natural process that warms the Earth’s surface. It occurs when the Sun's energy reaches the Earth, and some of that energy is absorbed while some is reflected back into space.
- Greenhouse gases (like CO2, methane, and nitrous oxide) trap heat in the atmosphere, contributing to the greenhouse effect.

### Step 4: Evaluate the Assertion
- The assertion is true. The presence of green plants is not necessary for the greenhouse effect to occur because greenhouse gases alone can maintain the effect.

### Step 5: Evaluate the Reason
- The reason is false. Chlorophyll does not cause the greenhouse effect; rather, it is involved in photosynthesis and gives plants their green color. Chlorophyll does not contribute to the greenhouse effect but can help reduce it by absorbing CO2 during photosynthesis.

### Step 6: Conclusion
- Since the assertion is true and the reason is false, the correct answer is that the assertion is correct, but the reason is incorrect.

### Final Answer
- The correct option is: Assertion is true, Reason is false.

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