R5210403-environmental Studies

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Code No: R5210403

II B.Tech I Semester(R05) Supplementary Examinations, May/June 2009 ENVIRONMENTAL STUDIES (Common to Electronics & Communication Engineering and Electronics & Computer Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Write a note on the importance of education on environmental issues and concerns. (b) Describe the multidisciplinary nature of environmental studies.

[8+8]

2. Discuss the importance of nature with respect to the following statements. (a) There is an urgent need to protect all living species. (b) Nature provides us with various options on how we utilize its goods and services.

[8+8]

3. (a) What are the different tropic levels of organisms in an ecosystem ? (b) Why is a complex ecosystem more stable than one with few species?

[10+6]

4. Enumerate some of the common plant species found in India and write in detail on any five of them [6+10] 5. (a) List the wastes that are prohibited from processing along with municipal solid waste. Discuss. (b) Briefly describe the methods of heating and disposal of solid waste.

[8+8]

6. Why should natural ecosystems and various forms of species be protected ? How does indiscriminate exploitation of these areas lead to damage ? [16] 7. (a) Define Health Impact Assement. (b) Outline some of the important strategies which must be taken up to minimize environmental hazards . [4+12] 8. What are the problems encountered in the disposal of solid waste from various sources. Describe the outcome of poor management of solid waste, illustrating your answer with any case-study. [16] ?????

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Code No: R5210403

II B.Tech I Semester(R05) Supplementary Examinations, May/June 2009 ENVIRONMENTAL STUDIES (Common to Electronics & Communication Engineering and Electronics & Computer Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. Explain the different areas of environmental conservation to which people belonging to different disciplines can contribute. [16] 2. Explain how agricultural practices and industrial growth have led to undesirable changes in the environment. [16] 3. (a) What is a food chain and food web? Describe the organisms which typically occupy various levels in an ecological pyramid? (b) What are the major types of ecosystems in the world? Write about any one briefly? [8+8] 4. (a) Write briefly about the different types of diversity in ecosystems. (b) Explain what is value of biodiversity and what are the different types of values of biodiversity? [8+8] 5. (a) Oceans are ultimate sink for most of the waste we produce. Explain. (b) List off shore sources of Marine Pollution. (c) Explain the effects of oil pollution on the ocean.

[8+4+4]

6. Why should natural ecosystems and various forms of species be protected ? How does indiscriminate exploitation of these areas lead to damage ? [16] 7. (a) Though population growth shows a global decline, there is still cause for worry. Explain why. (b) What are the reasons for differences in the rate of population growth in various countries. [8+8] 8. (a) Describe how you would methodically record the elements and resources in an ecosystem and assess its functioning. (b) Based on your filed visits, summarize your observations and findings of the water resource ecosystem in your region. [8+8] ?????

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Code No: R5210403

II B.Tech I Semester(R05) Supplementary Examinations, May/June 2009 ENVIRONMENTAL STUDIES (Common to Electronics & Communication Engineering and Electronics & Computer Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. Write a detailed note on the various institutions and organizations in the field of Environment Education and training, their activities and focal areas. [16] 2. (a) What is the necessity for a rational land use policy as pant of the environmental policy? (b) Write briefly about the unequal consumption patterns of the developed and developing countries. [8+8] 3. (a) What do you understand by energy flow in an ecosystem? (b) Describe the water cycle and the nitrogen cycle.

[8+8]

4. (a) Write briefly about the different types of diversity in ecosystems. (b) Explain what is value of biodiversity and what are the different types of values of biodiversity? [8+8] 5. (a) List the wastes that are prohibited from processing along with municipal solid waste. Discuss. (b) Briefly describe the methods of heating and disposal of solid waste.

[8+8]

6. (a) What are the major issues associated with resettlement and rehabilitation? (b) Bring out the main elements of water conservation.

[8+8]

7. (a) Write a detailed note on the causes of diarrhea and the effects of this on human health. (b) Explain the various measures by which this can be prevented and treated. [10+6] 8. (a) Explain the step by step procedure to record and document the environmental features and resource assets of an ecosystem during a field visit. (b) Describe, in the format given above, the features of any type of any ecosystem you have studied during field visit. [8+8] ?????

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Code No: R5210403

II B.Tech I Semester(R05) Supplementary Examinations, May/June 2009 ENVIRONMENTAL STUDIES (Common to Electronics & Communication Engineering and Electronics & Computer Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain the need for students from all courses to be aware of environmental issues. (b) Write briefly about the scope of environmental studies.

[6+10]

2. Discuss the importance of environmental studies with respect to the following statements. (a) We live in a world wherein natural resources are limited. (b) Green spaces and gardens are vital to the psychological and physical health of city dwellers. [8+8] 3. (a) What are the different kinds of grasslands in India and where are they found? Describe their characteristics. (b) What are the threats to grasslands and what should be done to conserve them? [8+8] 4. What is ‘in ?situ’ and ‘ex-situ’ conservation of biodiversity ? Explain briefly about each. [6+10] 5. (a) List the types of hazardous wastes and their methods of disposal. (b) Write about the health risks associated with these, giving examples to illustrate your answer. [8+8] 6. (a) Define watershed management and explain its objectives. (b) Discuss various water conservation techniques that can be practiced by individuals. [8+8] 7. (a) Though population growth shows a global decline, there is still cause for worry. Explain why. (b) What are the reasons for differences in the rate of population growth in various countries. [8+8] 8. (a) Describe how you would methodically record the elements and resources in an ecosystem and assess its functioning. (b) Write about your observations and main conclusions about any ecosystem which you have studied (e.g: forest, sea shore, farmlands, hilly area etc.) [8+8] ?????