Greenhouse gases cause

Options

A. Trap UV rays
B. Increase in temperature of atmosphere
C. Prevents global warming
D. All of these

Answer

### Step-by-Step Solution:

1. **Identify Greenhouse Gases**:
Greenhouse gases are substances in the atmosphere that trap heat. The main greenhouse gases include:
- Carbon dioxide (CO₂)
- Methane (CH₄)
- Nitrous oxide (N₂O)
- Water vapor (H₂O)
- Ozone (O₃)

2. **Understand the Function of Greenhouse Gases**:
These gases absorb and emit infrared radiation. They do not trap ultraviolet (UV) rays but are effective at trapping heat, which leads to an increase in the Earth's atmospheric temperature.

3. **Explain the Greenhouse Effect**:
The greenhouse effect occurs when the sun's energy reaches the Earth. Some of this energy is reflected back to space, while the rest is absorbed and re-radiated as infrared energy. Greenhouse gases absorb this infrared radiation, preventing it from escaping back into space, thus warming the atmosphere.

4. **Link to Global Warming**:
The trapping of heat by greenhouse gases leads to an increase in the average temperature of the Earth's atmosphere, a phenomenon known as global warming. This is a significant environmental issue, as it can lead to climate change and various ecological impacts.

5. **Conclusion**:
Based on the understanding of greenhouse gases and their effects, the correct answer to the question "Greenhouse gases cause" is that they **increase the temperature of the atmosphere**, contributing to global warming.

### Final Answer:
Greenhouse gases cause an increase in the temperature of the atmosphere, leading to global warming.

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