Question

The water of the Ganges remains pure owing to the presence of ?​

Answer 1

Answer:

Bacteria

Thus, the correct answer is 'Bacteria. '

Answer 2

Answer:

It was observed that the water of the Ganges remains pure. Previously, it was thought to be due to the presence of exclusive bacteriophages. However, later on, it was found that water of Ganges contains small motile bacteria called as Bdellovibrio bacteriovorus. These bacteria make the water of Ganges pure by attacking other bacteria