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Subjects
Science CBSE
Class 10
Management of natural resources
Sustainable management and development

20. Renewable and non-renewable resources, deforestation, afforestation

Exercise condition:

6 m.

Examine the statements below and choose the correct answer:

1.

Assertion (A):	Plastics belong to the non-biodegradable substance.
Reasoning (R):	Bacterial enzyme cannot degrade plastics.

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

2.

Assertion (A):	Consumption of coal can be reduced through different ways.
Reasoning (R):	Saving electricity by switching off lights, fans when not in use reduces the usage of coal.

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

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