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Assertion (A): A Suspended Particulate M...

Assertion (A): A Suspended Particulate Matter (SPM) is an important pollutant released by diesel vehicles.
Reason (R): Catalytic converters greatly reduce pollution caused by automobiles.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true but (R) is not the correct explanation of (A)

C

(A) is true statement but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
B
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Assertion: Suspended particulate matter(SPM) is an important pollutant released by diesel vehicles. Reason : Catalytic convertes greatly reduce pollution caused by automobiles.

Assertion : Catalytic converters must be used in cars. Reason : Catalytic converter helps to reduce the formation of acid rain.

What pollutants are released by motor vehicles? How can we minimize damage caused by them?

How do automobiles filled with catalytic converters reduce air pollution ? Suggest the best fuel for such vehicles.

Assertion (A): Reuse is better than recycle. Reason (R): Recycle prevents environmental pollution.

With its very large population of vehicular traffic, Delhi is one of the most polluted cities of the world. Which of the following steps were taken by the government to reduce vehicular pollution in Delhi ? (i) Switching over the entire fleet of public transport i.e., buses, autorickshaws, from diesel to CNG (ii) Phasing out of old vehicles (iii) Use of unleaded petrol in vehicles (iv) Use of low sulphur petrol and diesel in vehicles (v) Use of catalytic converters in vehicles (vi) Application of stringent pollution level norms for vehicles such as Euro-II norms, etc.

GRB PUBLICATION-ENVIRONMENTAL ISSUES-Assertion & Reason Type Questions
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  3. (A) : A niche is the evolutionary result of a species adaptations to i...

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  4. (A) : Dormancy in animals through a dry season is called hibernation. ...

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  5. (A) : Freshwater animals cannot live long in sea water. (R) : They w...

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  6. (A) : Light is an important abiotic factor. (R) : Life is not possib...

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  7. (A) : The spectral quality of solar radiation is important for life. ...

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  8. (A) : Plants can make use of only capillary water. (R) : It is prese...

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  9. (A) : Interspecific competition is a potent force in organic evolution...

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  10. (A) : Brood parasitism is a social parasitism among birds. (R) : Koe...

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  11. (A) : Decomposition is largely an oxygen requiring process. (R) : D...

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  12. (A) : The series of organisms eating one another form the food chain. ...

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  13. (A) : The successful establishment of a species in a bare area is call...

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  14. (A) : Food chains are interconnected at various trophic levels to form...

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  15. (A) : The concept of ecological pyramid was developed by Arthur Tansle...

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  16. (A) : Nutreints are never lost from the ecosystems (R) : They are re...

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  17. (A) : The availability of light on land is closely linked with that of...

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  18. (A) : The success of mammals is largely due to their ability to mainta...

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  19. (A) : Small animals have a larger surface area relative to their volum...

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  20. (A) : Many desert plants keep their stomata closed during day time. ...

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  21. (A) : Mycorrhizae represent an intimate mutualistic relation between a...

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