How does water pollution affect humans?

Options

A. By causing diarrhoea and typhoid
B. By causing food poisoning
C. By reducing crop yield
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Water Pollution**: Water pollution refers to the contamination of water bodies (like rivers, lakes, and oceans) with harmful substances, which can be chemicals, pathogens, or waste products.

2. **Identifying Effects on Humans**: Water pollution can have several adverse effects on human health and well-being. We will analyze each option provided in the question.

3. **Option A - Diarrhea and Typhoid**: Contaminated water often contains pathogens (bacteria, viruses, parasites) that can cause diseases. Drinking water that is contaminated can lead to illnesses such as diarrhea and typhoid fever. This option is correct.

4. **Option B - Food Poisoning**: If water is polluted, it can contain harmful microbes or chemicals that can contaminate food. When people consume food prepared with contaminated water, they can suffer from food poisoning. This option is also correct.

5. **Option C - Reducing Crop Yield**: Water pollution affects agriculture as well. Contaminated water can hinder plant growth due to a lack of essential minerals or the presence of toxins. This can lead to a reduction in crop yield, affecting food supply and the economy. This option is correct too.

6. **Conclusion - All of the Above**: Since all the options (A, B, and C) are valid effects of water pollution on humans, the correct answer is D: All of the above.

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