NEET BIOLOGY

Detailed explanation-1: -Flowing for 855 miles (1, 375km) from its source in the crystal clear waters of the Himalayas, The Yamuna quickly becomes one of the most polluted rivers in the world after travelling through the metropolis of New Delhi.

Detailed explanation-2: -There are two main types of the disease: bacillary dysentery and amebic dysentery. The latter is carried by the river Ganges and is caused by Entamoeba histolytica, an ameba.

Detailed explanation-3: -Every day, around three million litres of sewage is emptied into the Ganges – and only about half of that has undergone any kind of treatment. The river’s waters are so dirty that it’s considered one of the most polluted waterways in the world.

Detailed explanation-4: -The untreated sewage dumped into the river, industrial waste, agricultural runoff, remnants of partially burned or unburned bodies from funeral pyres, and animal carcasses all contribute to polluting the Ganges. High levels of disease-causing bacteria and toxic substances have also been found in the Ganges.