Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste? 1. Beryllium 2. Cadmium 3. Chromium 4. Heptachlor 5. Mercury 6. Lead 7. Plutonium Select the correct answer using the codes given below.
A1, 3, 4, 6 and 7 only
B1, 2, 3, 5 and 6 only
C2, 4, 5 and 7 only
D1, 2, 3, 4, 5, 6 and 7
Answer & Solution
Correct answer: B. 1, 2, 3, 5 and 6 only
UPSC CSE Prelims 2013 (GS-I, Set A), Q.29. Official answer key: B.
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