Correct group of diseases caused by water pollution is :

Question

Accepted Answer

Option 1 is the correct group of diseases caused by water pollution, and here's why:

1. **Cholera**: Cholera is a well-known waterborne disease caused by the bacterium *Vibrio cholerae*. It spreads through contaminated water and can lead to severe dehydration and even death if not treated promptly.

2. **Typhoid**: Typhoid fever is caused by the bacterium *Salmonella typhi*. It is transmitted through contaminated food and water, making it a common disease associated with water pollution.

3. **Dysentery**: Dysentery is an infection of the intestines that results in severe diarrhea with blood. It is often caused by bacteria such as *Shigella* or *Entamoeba histolytica*, which can be spread through contaminated water.

4. **Polio**: Poliomyelitis, commonly known as polio, is a viral disease that can be transmitted through contaminated water. Although primarily spread through person-to-person contact, water pollution can play a role in its transmission.

Now, let's explain why the other options are incorrect:

- **Option 2**: While cholera, jaundice, and typhoid can be linked to water pollution, anaemia is not directly caused by water pollution. Anaemia is typically due to nutritional deficiencies or other health conditions.

- **Option 3**: Anaemia and scurvy are nutritional deficiencies, and emphysema is a lung condition, none of which are caused by water pollution. Typhoid is the only disease in this option related to water pollution.

- **Option 4**: Similar to Option 2, while cholera, jaundice, and typhoid can be associated with water pollution, scurvy is a result of vitamin C deficiency and not related to water pollution.

Therefore, Option 1 is the correct group of diseases caused by water pollution, as it includes diseases that are directly linked to contaminated water sources.