UPSC Civil Services Prelims 2012
Question 56 of 66Environment and Ecology
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?
A1, 2 and 3 only
B4 only
C1, 3 and 4 only
D1, 2, 3 and 4
Correct Answer
The correct answer is hidden
Explanation
24 words hidden ... before their ozone-depleting effects became a major global concern. The statement about production of tubeless tyres is ... 28 words hidden