Lesson 4

Question 1

What are the type of pollutants?

Answer 1

Sewage from mega cities - causes diseases

Radioactive substances

Question 2

What are the stages of economic development?

Answer 2

Three stages

• pre industrial economies
• industrial economies
• post industrial economies

Question 3

What is the main impact on the Indian people?

Answer 3

Less oxygen in the water so less fish and plants can survive in the water. This leads to famine and disease for the Indian people.

Question 4

What types of water pollution is there?

Answer 4

Thermal
Parasitic worms
Organics
Inorganics

Question 5

What is Mumbai’s main solution to water pollution?

Answer 5

The National Water Quality Monitoring Network (NWQMN) has been established to monitor water quality across all rivers.

Question 6

What happens to the quality of potable water when the country starts to become developed?

Answer 6

As the country gets richer, sometimes the pollution gets worse as the country industrialises.