ECONOMICS (CBSE/UGC NET)

ECONOMICS

SCARCITY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which of the following does NOT directly impact our water sources?

A	Natural disasters (floods, landslides, tsunamis, storms)
B	New developments and urbanization (establishment of new communities)
C	Breakdown of older, unmaintained infrastructures (sewage systems)
D	Deaths (due to wars and diseases)

Explanation:

Detailed explanation-1: -Final answer: Dissolved oxygen does not cause water pollution.

Detailed explanation-2: -More than 50 kinds of diseases are caused by poor drinking water quality, and 80% of diseases and 50% of child deaths are related to poor drinking water quality in the world. However, water pollution causes diarrhea, skin diseases, malnutrition, and even cancer and other diseases related to water pollution.

Detailed explanation-3: -Human activities that generate domestic sewage and toxic waste cause water pollution by contaminating water with disease-causing microorganisms and poisonous substances. Oil spills are another source of water pollution that have devastating impacts on surrounding ecosystems.

Detailed explanation-4: -The main point source of pollution to water is from sewage and waste water treatment, while for diffuse pollution, main sources are from farming and fossil fuel power plants (via the air).

There is 1 question to complete.