CBSE Guess > Papers > Question Papers > Class X > 2009 > Social Science > Social Science

Q. 22. “The challenge of sustainable development requires integration of economic development with environmental concerns.” Support the statement by giving four measures that can be taken by the industries to protect the environment. 4×1=4.

Ans. Measures that can be taken by industries to protect the environment are as follows:
(i) Reducing the use of water for processing by reusing and recycling at various stages.
(ii) Rain water harvesting to meet the growing need for water.
(iii) Proper treatment of hot water and effluents before discharging them into rivers.
(iv) There should be careful planning during siting of industries, better designing of industrial equipment and better operation of the equipment.
(v) Oil or gas should be used instead of coal to reduce smoke.
(vi) Generators should be fitted with silencers.
(vii) Aerosol emissions can be reduced by the use of separators, scrubbers, filters, precipitators, etc.
(viii) Shifting of industries away from the cities. (any four).

Q. 23. Explain any four amendments made in the Constitution as a major step towards decentralization, in order to make the third tier of democracy more powerful and effective. 4×1=4

Ans. See Q. 23, Additional Questions, Chapter 2. [Page PS-20

Q. 24. Taking the example of Netherlands and Northern Ireland, explain the effects of overlapping and cross cutting social differences. 2+2=4

Ans. See Q. 10, Additional Questions, Chapter 3. [Page PS-26

Q. 25. Explain with examples, the influence of pressure groups on democracy. 4

Ans. See Q.3, Textbook Questions, Chapter 5. [Page PS-38

Q. 26. Explain any four reasons as to why organized sector has an edge over unorganized sector. 4×1=4

Ans. See Q. 9, Textbook Questions, Chapter 2. [Page E-7

Q. 27. Study the graph carefully and answer the questions that follow:

Social Science 2009 Question Papers Class X
Delhi		Outside Delhi		Compartment Delhi		Outside Delhi		Foreign
	Set 1 (PDF)		Set 1 (PDF)		Set 1		Set 1		Set 1 (PDF)
					Set 2		Set 2
					Set 3		Set 3