The cause(s) of water pollution is/are throwing of:

Options

A. garbage in river
B. untreated sewage in river
C. dead bodies in river
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Identify the Question:** The question asks about the causes of water pollution, specifically focusing on what is thrown into water bodies.

2. **Analyze Each Option:**
- **Option 1: Garbage in river.**
- Explanation: When people throw garbage, especially plastic waste, into rivers, it accumulates and leads to pollution. This is a significant contributor to water pollution.
- **Option 2: Untreated sewage in river.**
- Explanation: Industries and households often discharge untreated sewage into rivers. This waste contains harmful pathogens and chemicals, which severely pollute the water.
- **Option 3: Dead bodies in river.**
- Explanation: The presence of dead bodies in rivers can lead to foul odors and the introduction of harmful bacteria, contributing to water pollution.

3. **Evaluate the Options:**
- All three options (garbage, untreated sewage, and dead bodies) are valid causes of water pollution.

4. **Conclusion:**
- Since all the individual options contribute to water pollution, the correct answer is **Option 4: All of the above.**

**Final Answer:** The cause(s) of water pollution is/are throwing of: **All of the above.**

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