pyq/2013/prelims/29

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.

(A) 1, 3, 4, 6 and 7 only

(B) 1, 2, 3, 5 and 6 only

(C) 2, 4, 5 and 7 only

(D) 1, 2, 3, 4, 5, 6 and 7