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Environment › PollutionXSources
What is Bisphenol A (BPA)?
(a)
A medical test for detecting cancer
(b)
A test for testing the use of drugs to improve performance by athletes
(c)
A chemical used for the development of food-packaging materials
(d)
A special type of alloy steel
(C)
Which of the above are sources of methane, a major greenhouse gas?
1 and 4 only
2 and 3 only
1, 2 and 3 only
1, 2, 3 and 4
(D)