12TH CLASS ENVIRONMENT SCIENCE GUESS PAPER 2018 REGULAR JKBOSE
12TH CLASS ENVIRONMENT SCIENCE GUESS PAPER 2018 REGULAR JKBOSE
(Long Answer Type Questions)
1.-What is Malthusian theory of population growth? What are its limitations?
OR
"Critical state of Indian forests is due to human activities." Discuss.
• Define air pollution. Describe the main sources of air pollution.
• Name the methods to control air pollution and explain any two methods.
• There is a relationship between population and development. Discuss it in detail.
• The impact of agriculture on ecosystem functions are grouped into five areas. Discuss them.
• Discuss any five factors which regulate population size
• Do you think there is need to control population growth? Discuss.
• Population factors are interrelated and influence each other. Show how population size and density natality and mortality affect the population and its growth.
• Discuss the characteristics of exponential growth and also mention on what, exponential growth depends upon.
2. What is succession?: Differentiate between primary succession and secondary succession with examples. Or "Basically a better quality of life depends upon the quality of environment in which we live." Justify the statement.
• What is meant by population dynamics? Name the factors that determine population. Explain natality and mortality.
• Explain r-selection in population ecology.
• What are the methods of impact identification? Discuss any two methods in detail.
• Discuss E1A (Environmental impact Assessment) as an effective decision making instrument.
• Whet me the contents of Environment Impact Statement? Describe them. Dismiss the essential elements of a good EIS. How does symbiosis occur among various species? Discuss various symbiotic relationships with the help of examples.
• Environment is threatened by man-made problems. Discuss the proposed solutions to environmental problems.
3 Do you agree that there is a need for reorienting technology? Give your comments in support of your answer.
Or What are potentials and limitations of biotechnology?
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