Since October 02, 2014 'Swachh Bharat Abhiyan' has been launched

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 Multiple Choice QuestionsLong Answer Type

81.

Why does ozone hole form over Antarctica? How will enhanced ultraviolet radiations affect us?

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 Multiple Choice QuestionsShort Answer Type

82.

Write the name of the organism that is referred to as the 'Terror of Bengal'.

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83.

State the cause of accelerated eutrophication.

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84. Determination of Biological Oxygen Demand (BOD) can help in suggesting the quality of a water body. Explain.

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85.

Since October 02, 2014 'Swachh Bharat Abhiyan' has been launched in our country.

(a) Write your views on this initiative giving justification.

(b) As a biologist name two problems that you may face while implementing the programme in your locality.

(c) Suggest two remedial methods to overcome these problems.


(a) 'Swachh Bharat Abhiyan' is an initiative started by India's Prime Minister, Narendra Modi on October 02, 2014. It is India's biggest cleanliness drive since independence. On a personal note, I am completely in support for the movement. It is our primary duty to clean our nation because wastes and garbage are the biggest problems that play havoc on the progress and the development of a country. An unclean surrounding leads to lots of problems like health issues and may cause diseases. On a large scale, it is responsible for the pollution, be it air and water, which creates problem both on development and economic aspects of the country.

(b) As a biologist, two problems might be faced while implementing the programme in my locality are as follows:

i. Problem of proper sanitation and disposal.

ii. Separation of biodegradable and non-biodegradable wastes.

(c) Two suggested remedial methods are:

1. To overcome sanitation problems, we should provide awareness regarding the advantages of proper sanitation and encourage people of the locality to make proper toilets and dispose their garbage in dustbins or garbage bags and not throw them on the road.

2. There should be separate bins for both biodegradable and non-biodegradable wastes so that the non-biodegradable waste like plastic items can be used and recycled accordingly.

b
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86.

Name any two sources of e-Wastes and write two different ways for their disposal.

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87.

How have human activities caused desertification? Explain. 

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88.

How does algal bloom destroy the quality of a fresh water body? Explain.

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89.

Why is Eichhornia crassipes nicknamed as Terror of Bengal? 

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90.

By the end of 2002 the public transport of Delhi switched over to a new fuel. Name the fuel. Why is this fuel considered better? Explain.

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