ECONOMICS (CBSE/UGC NET)

Detailed explanation-1: -Water pollution is the contamination of water bodies (like oceans, seas, lakes, rivers, aquifers, and groundwater) usually caused due to human activities. Water contaminated with human feces can lead to the spread of diseases such as typhoid, ascariasis, and amoebiasis. Thus it is a true statement.

Detailed explanation-2: -Pollution in water not only harms plant growth but also allows plants to absorb dangerous chemicals from the water and pass them on to animals that rely on them for survival. Plants also pass on these pollutants to humans who consume them. Did you know that we eat water?

Detailed explanation-3: -Agricultural crops can be injured when exposed to high concentrations of various air pollutants. Injury ranges from visible markings on the foliage, to reduced growth and yield, to premature death of the plant.

Detailed explanation-4: -Therefore, it is true that untreated sewage causes water pollution.