Which of the following is a disadvantage of an artificial satellite?

Options

A. Weather forecasting
B. Space junk
C. Military activities
D. Space exploration

Answer

**Step-by-Step Solution:**

1. **Understanding Artificial Satellites**:
- Artificial satellites are man-made objects that are launched into space and orbit the Earth. They are created using technology and materials such as metals, sensors, and glass.

2. **Functions of Artificial Satellites**:
- These satellites serve various purposes, including weather forecasting, telecommunications, GPS navigation, and space exploration. They play a crucial role in modern technology and communication.

3. **Identifying Disadvantages**:
- While artificial satellites have numerous advantages, the question asks for a disadvantage. It is important to consider what negative impacts or issues arise from the presence of these satellites.

4. **Considering Options**:
- The options provided may include various aspects like weather forecasting, military activities, space exploration, and space junk. We need to evaluate each option to determine which one represents a disadvantage.

5. **Space Junk as a Disadvantage**:
- The correct answer is "space junk." This term refers to defunct satellites or fragments from satellites that remain in orbit around the Earth after they are no longer operational.
- Space junk poses a risk to active satellites and spacecraft, as collisions can occur, potentially damaging or destroying functional satellites.

6. **Conclusion**:
- Therefore, the disadvantage of artificial satellites is the creation of space junk, which can interfere with other satellites and space missions.

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