1 MARK QUESTIONS
Q1. How is the increase in demand for energy affecting the atmosphere?
Q2· Give an example to show that the exploitation of resources leads to pollution.
Q3. Make a list of a few industries that are dependent on forest products.
Q4. Suggest some consequences due to the loss of biodiversity?
Q5. List two major benefits of Dams.
Q6. List two measures for the better management of water resources.
Q7. Name the tree for which Amrita Devi Bishnoi and others sacrificed their lives.
Q8. State one reason for the conservation of forest and wildlife.
Q9. List two items which can be easily recycled, but we generally throw them in the dustbins.
Q10. Name two indigenous water saving methods.
Q11. State two causes of pollution of river Ganga.
Q12. List two change that you can make in your habits to reduce the consumption of electricity or water.
Q13. During the recycling process of waste articles, what will be the starting step?
Q14. In which region of India, Bundhis are used for water harvesting?
Q15. Name the most common practice of recharging groundwater.
Q16. How can we prevent floods?
Direction (Q. Nos. 17 – 21) In each of the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the . statements, mark the correct answer as
(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion
(b) If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion ·
(c) If Assertion is true, but Reason is false
(d) If Assertion is false, but Reason is true
(e) If Assertion and Reason both are false
Q17. Assertion: We need to use our resources carefully.
Reason: These resources are not unlimited and are exploited rapidly.
Q18. Assertion: Large dams ensure storage of adequate water and also generate electricity, but still get criticism.
Reason: Criticism about large dams address economic, environment and social problems.
Q19. Assertion: Mismanagement of the water has largely led to the benefits being cornered by a few people.
Reason: People close to the source grow water-intensive crops like sugarcane and rice while people farther downstream do not get any water.
Q20. Assertion: Bundhis are found in Rajasthan.
Reason: Bundhis are traditional water harvesting structures.
Q21. Assertion: Large scale dams are sources for producing Electricity.
Reason: Building of large dams are lead to around economic development at the site of dam.
Q19. Kulhs are water harvesting structures of
(a) Jammu region
(d) Himachal Pradesh
Q20. The main cause for abundant coliform bacteria in the river Ganga is
(a) discharge of effluents from motor vehicle industries
(b) washing dirty clothes with detergents
(c) disposal of unburnt corpses into water
(d) immersion of ashes into water
Q21. Arabari forests of Bengal is dominated by
Q22. It is important to make small check dams across the flooded gullies because they
(a) hold water for irrigation
(b) hold water and prevent soil erosion
(c) hold water permanently
(d) contaminate drinking water by animal excreta
3 MARK QUESTIONS
Q1. Give one example each from reuse and recycle, respectively.
Q2. List any four harms of destruction of forests.
Q3. List any four stakeholders which may help in conservation of forests?
Q4. Hydroelectric power is also an indirect form of solar energy. How?
Q5. Why do we need alternative sources of energy?
Q6. Name a greenhouse gas. What happens when its amount increases in the atmosphere?
Q7. How does mining cause pollution?
Q8. ‘Religious beliefs help in the conservation of forest biodiversity’. Justify.
Q9. Use of green and blue coloured dustbin is a good practice and reduces the environment pollution. Justify.
Q10. Describe briet1y the ‘Khadin’ system of rainwater harvesting practised in Rajasthan.
Q11. List four changes you would incorporate in your lifestyle in a move towards sustainable use of available resources.
Q12. Distinguish between inexhaustible and exhaustible resources.
Q13. To achieve sustainable development, can you suggest what steps should be taken?
Q14. List activities that have led to the contamination of the river Ganga.
Q15. What important message is conveyed by Amrita Devi Bishnoi Award for wildlife conservation?
Q16. What was the cause behind the Chipko Andolan and what happened during it? What was the result of the movement?
Q17. Suggest some precautionary measures which should be taken while harvesting rainwater.
Q18. List measures to conserve electricity in your house?
Q19. Carbon dioxide is considered as toxic to mankind. Explain.
Q20. What is ‘Sustainable Management of Natural Resources’ ? Why is it necessary? What one out of reuse and recycle, would you practise in your daily life and why?
Q21. Name a few changes in habits you can undertake to become more environment-friendly?
Q22. (i) Name any two fossil fuels. Why are they so-called?
(ii) Mention the role of forests in conserving the environment. How do the forest get depleted?
Q23. (a) Which is the most rapidly dwindling natural resource in the world?
(b) State the meaning of sustainable management or development.
Q24. Forest resources ought to be used judiciously. Give reason.
Q25. What is water harvesting? Write any two advantages of it.
5 MARK QUESTIONS
Q1. What is the importance of forests as a resource?
Q2. Suggest a few steps that should be involved in a successful forest conservation strategy.
Q3. Prepare a list of five activities that you ‘ perform daily in which natural resources can be conserved or energy utilisation can be minimised.
Q4. On the environment. day, i.e. 5th June, every year, your school organics various activities related to Earth, ecosystem and environment, etc., like best out of waste, paper machetes and several others. What purpose do you think is served by this measure?.
Q5. How can you as an individual contribute or make a difference to the management of
(a) forests and wildlife,
(b) water resources and
(c) coal and petroleum?
Q6. (a) In the context of conservation of natural resources, explain the terms reduce, recycle and reuse.
(b) Why is conservation of water necessary? State any four reasons.
Q7. We saw in this chapter that there are four main stakeholders when it comes to forests and wildlife. Which among these should have the authority to decide the management of forest produce? Why do you think so?
Q8. What is the dam? Why do we seek to build large dams? While building large dams, which three main problems should particularly be addressed to maintain peace among local people? Mention them.
Q9. Give the answers.
(a) Name the 3 Rs that will help us to conserve natural resources for the long term use.
(b) Recycling of articles results in wastage of energy and money therefore, one should practice reuse. Justify.
(c) Write two advantages of dams.
Q10. Forest resources ought to be used in a manner that is both environmentally and developmentally sound. Explain this briefly.
Q11. List instances where human intervention saved the forest from destruction.
Q12. Why are environmentalists insisting upon sustainable natural resource management? Give reasons.
Q13. Give reasons for switching over from fossil fuels to other sources of energy.