ISC Question Paper XII (Commerce Group - 2009)
ENVIRONMENTAL EDUCATION
SECTION-A (20 Marks)
(Compulsory)
Q 1: (i) What is ‘Captive breeding’? 1
(ii) Define a food chain. 1
(iii) Name a Biofertilizer that is essential for the healthy growth of a crop. 1
(iv) Name the NGO that is working in Andhra Pradesh to promote self sustenance in the region. 1
(v) Name a National Park in India aimed at protection of wild life. 1
(vi) Give an example of ‘Symbiosis’ in animals. 1
(vii) What is an ‘Ecomark’ scheme? 1
(viii) What are ‘Threatened Species’? 1
(ix) Mention any one legislation in India that is in force for managing the environment. 1
(x) State one application of Biodiversity in the field of medicine. 1
(xi) Define ‘Sustainable development’. 2
(xii) State any two economic values of biodiversity. 2
(xiii) Mention the names of any two natural pest predators. 2
(xiv) State any two adverse effects of using chemical fertilizers. 2
(xv) Explain in brief the concept of a ‘Seed bank’. 2
Q 2: (a) What is ‘Biodiversity’? Discuss any three reasons for conserving biodiversity. 5
(b) ‘Loss of biodiversity disturbs the ecological balance on the planet’. List any five implications of the loss of biodiversity. 5
Q 3: (a) Explain the role of wildlife sanctuaries in conservation of biodiversity. 5
(b) What is a ‘buffer zone’? Explain its role in mitigating the people - wildlife conflict. 5
Q 5: (a) What are the different aspects to be considered in providing a support base for sutainable development? Explain any two in detail. 5
(b) Explain the role of skilled manpower in promoting a sustainable development, highlighting the various fields where it is required. 5
Q 6: (a) Explain the role of soil micro-organisms in maintaining the health of the soil. 5
(b) State one reason adopting immediate measures for increasing soil fertility. Explain in detail any two methods by which soil fertility can be improved. 5
Q 7: (a) Explain the various threats associated with the use of modern methods of pest control in agriculture. 5
(b) What is farmyard manure? Mention any three uses of farmyard manure. 5
Q 8: (a) Explain, the role of alternative technology in environmental management. 5
(b) Highlight any two problems associated with the movement of agricultural goods from the producers to the consumers. Suggest any three methods for solving those problems. 5
Q 9: (a) What is mixed farming? Mention any three advantages of mixed farming. 5
(b) Explain the benefits of applying Integrated Pest Management practices on agricultural crops. 5
Q 10: (a) Environment should be viewed as a capital rather than as a resource. 5
(b) Discuss the need for judicious use of chemical fertilizers. 5