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Catalytic converters are fitted into aut...

Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change unburnthydrocarbons into:

A

carbon dioxide and water

B

carbonmonooxide

C

methane

D

carbon dioxide and methane

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Explain briefly : Catalytic converters

Discuss briefly the following: Catalytic converter

Observe the diagram of the catalytic converter and answer the questions which follow: Name the gases that are released after passing the exhaust hydrocarbons through the cataytic converter

Give the significane of use of catalytic convetors in the automobiles.

Name any two metals used in the catalytic converters of automobiles.

Why should only unleaded petrol be used in the automobiles with catalytic converter?

Why is the use of unleaded petrol recommended for vehicles equipped with catalytic converters?

Observe the diagram of the catalytic converter and answer the questions which follow: Name the other poisonous gas which is missing in the exhaust pollutsnt of an automobile in the above diagram.

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: Suspended particulate matter (SPM) is an important pollutant released by diesel vehicles. Reason. Catalytic converters greatly reduce pollution caused by automobiles.

MBD-ENVIRONMENT ISSUES-EXERCISE
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  6. How has DDT caused decline in bird population?

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  8. Make a list of impurities present in domestic sewage.

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  9. Explain algal bloom.

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  10. Expalin : Radioactive waste

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  11. Why ozone hole forms over Antarctica? How will enhanced UV radiations ...

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  12. What is organic farming ? Discuss the benefits

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  14. When huge amount of sewage is dumped into a river , the BOD will:

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  18. List the attributes that populations but not individuals possess.

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  19. Differentiate between hibernation and aestivation.

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