Which of the following shows green house effect?

Options

A. Ultraviolet rays
B. Infrared rays
C. X -rays
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Greenhouse Effect:**
- The greenhouse effect is a natural process where certain gases in the Earth's atmosphere trap heat from the sun. This process helps to keep the Earth warm enough to support life.

2. **Identifying the Source of Heat:**
- The primary source of heat for the Earth is the sun. The sun emits energy in the form of electromagnetic waves, which include visible light, ultraviolet rays, and infrared rays.

3. **Recognizing the Types of Electromagnetic Waves:**
- Electromagnetic waves can be categorized into various types based on their wavelengths. These include:
- X-rays
- Ultraviolet rays
- Visible light
- Infrared rays
- Radio waves

4. **Determining Which Waves Contribute to the Greenhouse Effect:**
- Among these types of electromagnetic waves, infrared rays are particularly important in the context of the greenhouse effect. They are often referred to as "heat waves" because they are associated with thermal radiation.

5. **Understanding the Mechanism:**
- When infrared rays reach the Earth's surface, they are absorbed and then re-radiated as heat. Greenhouse gases in the atmosphere, such as carbon dioxide and methane, absorb some of this infrared radiation, preventing it from escaping back into space. This leads to an increase in the Earth's temperature.

6. **Conclusion:**
- Therefore, the greenhouse effect is primarily associated with infrared rays, as they are the type of electromagnetic radiation that contributes to the heating of the atmosphere.

**Final Answer:**
- The greenhouse effect is shown by **Infrared Rays**.

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