UPSC Civil Services 2012 Prelims General Studies Paper I
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Question : 17 of 100
Marks:
+1,
-0
Consider the following statements :
Chlorofluorocarbons, known as ozone-depleting substances, are used
1. In the production of plastic foams
2. In the production of tubeless tyres
3. In cleaning certain electronic components
4. As pressurizing agents in aerosol cans
Which of the statements given above is/are correct?
Chlorofluorocarbons, known as ozone-depleting substances, are used
1. In the production of plastic foams
2. In the production of tubeless tyres
3. In cleaning certain electronic components
4. As pressurizing agents in aerosol cans
Which of the statements given above is/are correct?
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