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PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Subjects
Science CBSE
Class 8
Conservation of plants and animals
The biodiversity of organisms and their conservation

16. Deforestation, causes and effect. Reforestation, extinct and endangered species

Exercise condition:

6 m.

Examine the statements below and choose the correct answer:

1. Assertion (A) - Natural habitat when disturbed cause extinction of wildlife.

Reasoning (R) - Deforestation is the large scale cutting down of forests.

Both A and R are false
A is true but R is false
A is false but R is true
Both A and R are true but R is NOT the correct explanation of A
Both A and R are true and R is the correct explanation of A

2. Assertion (A) - Deforestation is the large scale cutting down of forests.

Reasoning (R) - To produce paper products forests are cut down.

Both A and R are false
Both A and R are true and R is the correct explanation of A
A is true but R is false
A is false but R is true
Both A and R are true but R is NOT the correct explanation of A

3. Assertion (A) - Grey data book keeps a record of all rare and endangered species.

Reasoning (R) - The book classifies species into two categories - threatened and not threatened.

Both A and R are false
A is true but R is false
Both A and R are true but R is NOT the correct explanation of A
Both A and R are true and R is the correct explanation of A
A is false but R is true

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