| 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) All of these
Correct Answer: B
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