Q: Due to improper/indiscriminate disposal of hold and used computers or their parts, which of the following are released into the environment as e-waste?
- Beryllium
- Cadmium
- Chromium
- Heptachlor
- Mercury
- Lead
- 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
Correct Answer: Option (b)
- Beryllium is used in circuit board, Hard disk drive, Motherboard, Wiring board and Connectors. So, Option C is wrong.
- Mercury is a key part of some modern technologies, including LCD screens, Laptop and computers so Option A is also wrong.
- Heptachlor is an organochlorine compound that was used as an insecticide. So, Option D is also wrong.
- Hence, option (b) is correct.
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