Class 10 Social Science MCQ Chapter 7 Environment and Environmental Problems

Class 10 Social Science MCQ Chapter 7 Environment and Environmental Problems, SCERT Class 10 Social Science Multiple Choice Question Answer As Per New Syllabus to each chapter is provided in the list of SEBA Class 10 Social Science Objective Type Question Answer and Short Type Question Answer so that you can easily browse through different chapters and select needs one. Class 10 Social Science MCQ Chapter 7 Environment and Environmental Problems can be of great value to excel in the examination.

SCERT Class 10 Social Science MCQ Chapter 7 Environment and Environmental problems

Class 10 Social Science MCQ Chapter 7 Environment and Environmental Problems covers all the exercise questions in Assam Board SCERT Textbooks. Class 10 Social Science MCQ Chapter 7 Environment and Environmental Problems provided here ensures a smooth and easy understanding of all the concepts. Understand the concepts behind every chapter and score well in the board exams.

Environment and Environmental problems

Chapter – 7

GEOGRAPHY

Multiple Choice Questions & Answers

1. The gas that has largest contribution to global warming is—

(a) mithane.

(b) nitrous oxide. 

(c) chlor floro carbon.

(d) carbon di-oxide.

Answer: (d) Carbon di-oxide.

2. Global warming is a—

(a) local problem.

(b) international problem.

(c) regional problem.

(d) personal problem.

Answer: (b) international problem.

3. Sustainable development is—

(a) economic development

(b) considerable development.

(c) environmental development.

(d) global development.

Answer: (b) considerable development.

4. The present age of earth is—

(a) 4700 million year.

(b) 4600 million year.

(c) 3400 million year.

(d) 5000 million year.

Answer: (b) 4600 million year.

5. The percentage of earth’s land under desertification is—

(a) approx. 20%

(b) approx. 35%.

(c) approx. 25%.

(d) approx. 30%.

Answer: (b) approx. 35%.

6. How high dose the atmosphere extend from the earth surface?

(a) 280 km.

(b) 580 km.

(c) 380 km.

(d) 10,000 km.

Answer: (d) 10,000km.

7. Acid rain is usually formed in—

(a) the polar region.

(b) the industrial area.

(c) the forest area.

(d) the grassy area.

Answer: (b) the industrial area.

8. Which of the following gas is not responsible for global warming? 

(a) Carbon di-Oxide.

(b) Ozon. 

(c) Mithane.

(d) Nitrous Oxide.

9. The percentage of Nitrogen gas in the air is—

(a) 77.07%.

(b) 78.08%.

(c) 76.06%.

(d) 74.04%.

Answer: (b) 78.08%.

10. The percentage of Oxygen gas in the air is—

(a) 20.98%.

(b) 21.12%.

(c) 19.90%.

(d) 03.35%.

Answer: (a) 20.98%.

11. The percentage of Argon gas in the air is—

(a) 0.08%.

(b) 0.93%.

(c) 0.81%.

(d) 0.01%.

Answer: (b) 0.08%.

12. The percentage of Carbon di-Oxide in the air is—

(a) 0.035%.

(b) 0.031%.

(c) 0.036%.

(d) 0.032%.

Answer: (a) 0.035%.

13. The percentage of earth’s surface covered by Hydrosphere is

(a) 61%.

(b) 51%.

(c) 71%. 

(d) 73%.

Answer: (c) 71%.

14. No of species of paints and animals in the biosphere are

(a) 1.65 million.

(b) 1.55 million.

(c) 1.45 million.

(d) 1.75 million.

Answer: (d) 1.75million.

15. The number of environmental problems can be geographically divided into— 

(a) 3 categories.

(b) 5 categories.

(c) 4 categories.

(d) 6 categories.

Answer: (a) 3 categories.