NEET BIOLOGY

Detailed explanation-1: -Industrial wastewater discharge, agricultural chemical fertilizer, sediment accumulation, ship garbage and acid rain were the main Yangtze River pollution causes.

Detailed explanation-2: -Yangtze water is heavily polluted by organic and inorganic compounds (such as metals, persistent organic pollutants, and agro-fertilizers) from new large-scale industrial, agricultural, and domestic developments (4).

Detailed explanation-3: -The Yangtze River has been a source of life and prosperity for the Chinese people for centuries and is a habitat for a remarkable variety of aquatic species. But the river suffers from huge amounts of urban sewage, agricultural effluents, and industrial wastewater as well as ship navigation wastes along its course.

Detailed explanation-4: -The main causes of water pollution in the Ganges river are the disposal of human sewage and animal waste, increasing population density, and disposal of industrial waste into the river.