Which one among the following is not resposible for '`"Green house effect"`` ?

Options

A. Water vapour
B. Carbon dioxide
C. Nitrogen
D. Chlorofluorocabons

Explanation

To solve the question "Which one among the following is not responsible for the 'Greenhouse effect'?", we can follow these steps:

### Step 1: Understand the Greenhouse Effect
The greenhouse effect is a natural process that warms the Earth’s surface. When the Sun's energy reaches the Earth, some of it is reflected back to space and the rest is absorbed, warming the planet. Greenhouse gases trap some of this heat, preventing it from escaping back into space.

### Step 2: Identify Greenhouse Gases
Common greenhouse gases include:
- Carbon Dioxide (CO2)
- Water Vapour (H2O)
- Methane (CH4)
- Nitrous Oxide (N2O)
- Ozone (O3)
- Chlorofluorocarbons (CFCs)

### Step 3: Analyze the Options
The options provided are:
1. Water Vapour
2. Carbon Dioxide
3. Nitrogen
4. Chlorofluorocarbons

From the list of greenhouse gases, we can see that:
- Water Vapour is a greenhouse gas.
- Carbon Dioxide is a greenhouse gas.
- Chlorofluorocarbons (CFCs) are greenhouse gases.

### Step 4: Identify the Non-Greenhouse Gas
Now, we need to determine which of the options is not a greenhouse gas. Nitrogen (N2) makes up a significant portion of the Earth's atmosphere but does not contribute to the greenhouse effect.

### Conclusion
The correct answer is **Nitrogen**, as it is not responsible for the greenhouse effect.

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