Cosmic rays comes from

Options

A. Sun
B. Other planets or outer space
C. Stratosphere
D. Both A and B

Answer

**Step-by-Step Solution:**

1. **Understanding Cosmic Rays**: Cosmic rays are high-energy particles that travel through space. They primarily consist of protons and atomic nuclei.

2. **Identifying Sources of Cosmic Rays**: The question asks where cosmic rays originate. The potential sources listed are:
- The Sun
- Other planets
- Outer space
- The stratosphere
- Both A and B (the Sun and other planets)

3. **Evaluating Each Option**:
- **Sun**: The Sun emits solar wind, which is a stream of charged particles, including protons. This contributes to cosmic rays.
- **Other Planets**: Other planets in our solar system can also emit particles, but they are not significant sources of cosmic rays compared to the Sun.
- **Outer Space**: Cosmic rays are indeed found in outer space, but they originate from various sources, including supernovae and other high-energy astrophysical processes.
- **Stratosphere**: The stratosphere is part of Earth's atmosphere and does not produce cosmic rays; rather, it is where cosmic rays can interact with the atmosphere.
- **Both A and B**: This option suggests that both the Sun and other planets contribute to cosmic rays.

4. **Conclusion**: The most accurate answer is that cosmic rays primarily come from outer space, with significant contributions from the Sun. However, since the question includes the option of both the Sun and other planets, the best choice is "Both A and B".

**Final Answer**: Cosmic rays come from both the Sun and other planets.

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