question_answer

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

B)         1, 2, 3, 5 and 6

C)  2, 4, 5 and 7                

D)  1, 2, 3, 4, 5, 6 and 7