Which of the following bacteria is found in Ganga water?

Options

A. A. Coliform bacteria
B. B. Streptocococus bacteria
C. C. Staphylococus bacteria
D. D. Diplococcus bacteria

Explanation

**Step-by-Step Solution:**

1. **Identify the Options**: The question provides four options: coliform bacteria, streptococcus bacteria, staphylococcus bacteria, and diplococcus bacteria.

2. **Research on Bacteria Presence**: According to reports and studies, it has been noted that streptococcus bacteria, staphylococcus bacteria, and diplococcus bacteria are not found in Ganga water.

3. **Focus on Coliform Bacteria**: Coliform bacteria are a group of bacteria commonly found in the environment, including in feces of warm-blooded animals. They are often used as indicators of water quality.

4. **Pollution Levels in Ganga Water**: It has been reported that Ganga water, especially in polluted areas, contains high levels of faecal coliform bacteria. The concentration can be as high as 50,000 or more in polluted sections of the river.

5. **Conclusion**: Since coliform bacteria are present in high numbers in the polluted Ganga water, while the other three types of bacteria are absent, the correct answer is coliform bacteria.

**Final Answer**: The bacteria found in Ganga water is **coliform bacteria**.

---