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Answer the following problems in detail.

problem 1) prepare down the main causes and consequences of deforestation? Describe in detail.

problem 2) What are point and non-point sources of water pollution? prepare down the list of different pollutants/contaminants which affect the utility value of water. prepare down the most common methods for monitoring pollution of waste water.

problem 3) What is biodiversity and the major threats to the biodiversity? describe the different methods and strategies to conserve biodiversity.

problem 4) What are age or population pyramids and what do they signify? Sketch a typical population pyramid of any developing country and discuss how it is different from that of Japan and Germany?

problem 5) describe ‘energy’ and distinguish between conventional and non-conventional energy resources. prepare down advantages of using solar energy as an alternative to fossil fuels. List some devices used to harness the solar energy.

problem 6) describe “food security”. prepare down the name of three systems that provide food resources for human consumption. Describe the adverse environmental impacts of modern agriculture.

problem 7) describe air pollution. How do primary air pollutants differ from secondary air pollutants? describe the sources of air pollution and which strategies can be adopted to control air pollution by transport sector?

problem 8) Describe the process of vermicompositing as applied for the management of municipal solid waste. How does it differ from compositing?

problem 9) What is ecological or biotic succession? How does primary succession differ from secondary succession? describe the process of biotic succession on a bare rock or in a pond.

problem 10) What do you mean by Ecological or Eltonian pyramids? describe the pyramid of numbers and pyramid of biomass in grassland and a tree ecosystem.

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