Class 11 Environmental Studies Important Chapter 5 Environmental Pollution

Class 11 Environmental Studies Important Chapter 5 Environmental Pollution Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Environmental Studies Important Solutions and select need one. AHSEC Class 11 Environmental Education Additional Notes English Medium Download PDF. HS 1st Year Environmental Studies Important Solutions in English.

Class 11 Environmental Studies Important Chapter 5 Environmental Pollution

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. ASSEB Class 11 Environmental Studies Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Environmental Studies Important Notes in English for All Chapters, You can practice these here.

Environmental Pollution

Chapter: 5

UNIT- I : Environmental Education

IMPORTANT QUESTION AND ANSWER

Short Question and Answer:

1. From which language and word is the term “pollution” derived?

Ans: The term “pollution” is derived from the Latin word Pollutionem.

2. During which season does air pollution occur due to the mixing of pollen grains in the air?

Ans: During the spring season, pollen grains are produced and mix in the air, causing air pollution.

3. What is emitted in varying amounts from vehicles depending on the sulfur content in the fuel?

Ans: Depending on the sulfur content in the fuel, vehicles emit varying amounts of sulfur dioxide (SO₂).

4. Give a definition of water pollution.

Ans: Water pollution refers to the physical, chemical, and biological changes in water that cause harmful effects on humans and aquatic life.

5. Name two waterborne diseases.

Ans: Two waterborne diseases are diarrhea and typhoid.

6. What is the difference between primary and secondary pollutants?

Ans: Primary pollutants are directly released from the source, while secondary pollutants are formed through chemical reactions of primary pollutants.

7. What is a natural source of noise pollution?

Ans: A natural source of noise pollution is thunder.

8. What is formed when hydrocarbons and nitrogen oxides react in sunlight?

Ans: When hydrocarbons and nitrogen oxides react in sunlight, a secondary pollutant called Peroxyacetyl Nitrate (PAN) is formed.

9. Name one source of indoor air pollution.

Ans: One source of indoor air pollution is smoke from a gas stove.

10. What causes vehicle smoke to increase pollution?

Ans: Pollution from vehicle smoke increases due to poor fuel, old engines, and poor road conditions.

11. What percentage of air pollution is caused by industries like chemical plants, metal manufacturing, smelters, paper mills, textile mills, petroleum refineries, and synthetic rubber production plants?

Ans: These industries cause about 20% of air pollution.

12. How many types of major sources of air pollution are there?

Ans: There are two types of major sources of air pollution.

13. Give examples of primary pollutants.

Ans: Examples of primary pollutants include sulfur oxides, nitrogen oxides, and hydrocarbons.

14. Water sources should be located at what minimum distance and elevation from toilets, drainage pipes, and waste disposal areas?

Ans: Water sources should be located at a height of at least 10 to 15 meters away from toilets, drainage pipes, and waste disposal areas.

15. What is generated from household, commercial, institutional, agricultural, mining, and industrial activities?

Ans: Solid waste is generated from household, commercial, institutional, agricultural, mining, and industrial activities.