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How are the earth's principal biological systems being depleted? - English Core

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प्रश्न

How are the earth's principal biological systems being depleted?

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उत्तर

According to Mr. Lester R. Brown, there are four principal biological systems of the earth. These systems are fisheries, forests, grasslands, and croplands. However, due to the increasing demand for human beings to such an ‘unsustainable’ extent, the productivity of these systems is being hampered. The excessive demand results in deterioration and depletion of these resources. A country where protein is consumed on a large scale, over-fishing is common, which leads to the collapse of fisheries in that area. Grasslands have been turned into deserts and the production of crops is decreasing. The forests are destroyed in large proportions to obtain firewood. The depletion of tropical forests has also led to the extinction of several species.

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अध्याय 5: The Ailing Planet: the Green Movement’s Role - Understanding the text [पृष्ठ ४७]

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एनसीईआरटी English (Core) - Hornbill
अध्याय 5 The Ailing Planet: the Green Movement’s Role
Understanding the text | Q 3 | पृष्ठ ४७

संबंधित प्रश्न

In the following items, sentence A is complete, while sentence B is not. Complete sentence B, making it as similar as possible to sentence A.  Write sentence B.

(A) His attitude towards his parents has always puzzled the
(B) I have .................................................................................. 


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Explain with reference to the context.


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In triumphs, people have dropped down dead,
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Write a Diary entry each day for a month and compile them into a book. You may also name your diary as Anne Frank did.


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