Coliform is a group of ............. which are found in Ganga in abundance?

Options

A. Bacteria
B. Protozoa
C. Virus
D. Larva of exotic fish

Answer

**Step-by-Step Solution:**

1. **Understanding Coliform:** Coliform refers to a group of bacteria that are commonly found in the environment, including soil, vegetation, and the intestines of warm-blooded animals.

2. **Identifying the Source:** The presence of coliform bacteria in the Ganga River is primarily due to human activities, particularly the disposal of human waste. This waste includes both urine and feces, which contain these bacteria.

3. **Linking to Water Pollution:** The presence of coliform bacteria in the Ganga indicates water pollution, as these bacteria are typically not found in clean water sources. Their abundance in the river suggests contamination from human excreta.

4. **Conclusion:** Therefore, coliform is a group of bacteria that are found in abundance in the Ganga River due to the pollution caused by human waste.

**Final Answer:** Coliform is a group of bacteria which are found in Ganga in abundance.

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