What measures are taken for disposal of solid wastes ? from Biolo

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 Multiple Choice QuestionsShort Answer Type

61. How are solid waste disposed by the use of saniitary landfills? Why is it not 
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62. What measures are taken for disposal of solid wastes ?


The various measures taken for disposal of Solid Wastes are:

1. Burning of municipal solid wastes to reduce their volume. 

2. Use of sanitary landfills instead of open-burning dumps.

3. Incineration of municipal wastes and using the heat emitted to generate electricity.

4. Recycling of various components of e-waste.

5. Categorisation and sorting of wastes into three categories called (a) bio-degradable, (b) recyclable and (c) the non-biodegradable.

6. Reducing the amount of garbage and the use of non-biodegradable materials like plastic.

 

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 Multiple Choice QuestionsShort Answer Type

63. What is reforestation ?
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 Multiple Choice QuestionsLong Answer Type

64.

Discuss the causes and effects of global warming. What measures need to be taken to control global warming?

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 Multiple Choice QuestionsShort Answer Type

65. A decade back, the enormous vehicular traffic in Delhi had made Delhi rank 4th among polluted cities of the world. Two measures taken by the Delhi Government brought marked improvement in air quality by 2005.
1.What were these two measures and how did they reduce air pollution ?

2. What is the norm set by Euro II for petrol and diesel vehicles ?

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66. A factory drains its waste water into the nearby lake causing algal bloom.

(a) How was the algal bloom caused ?

(b) What would be the consequences ?

(c) Give the term for the cause of it.

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67. Why is the use of unleaded petrol recommended for motor vehicles equipped with catalytic converters ?
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 Multiple Choice QuestionsLong Answer Type

68. What are various constituents of domestic sewage ? Discuss the effects of sewage discharge on a river.
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69.

Write critical notes on the following:

(a) Eutrophication
(b) Biological magnification
(c) Groundwater depletion and ways for its replenishment
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 Multiple Choice QuestionsShort Answer Type

70. Discuss the role of women and communities in protection and conservation of forests.
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