Loading...
UPSC 2013: 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
Attempt This Question
Not attemptedCorrect Answer: (b) 1, 2, 3, 5 and 6 only
Discarded computers release several toxic metals: beryllium (mother-boards), cadmium (Ni-Cd batteries), chromium (hexavalent surface coatings), mercury (switches, LCDs) and lead (solder). Heptachlor is a pesticide, and plutonium is radioactive material not used in electronic hardware; therefore the correct set is 1, 2, 3, 5 and 6, i.e. option (b). ([mrunal.org](https://mrunal.org/2013/06/answerkey-csat-2013-environment-biodiversity-enb-questions-solved-with-explanation-reference-all-four-sets-abcd.html?utm_source=openai))
Related Current Affairs
Related UPSC Questions
More from Pollution & Waste Management
2012moderate
Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning? 1.
2012moderate
Consider the following statements: Chlorofluorocarbons, known as ozone-depleting substances, are used 1. in the production of plastic foams 2. in the
2014moderate
Brominated flame retardants are used in many household products like mattresses and upholstery. Why is there some concern about their use? 1. They are
Related Environment & Ecology Topics
2013Water & Wetland Conservation
Which of the following can be found as pollutants in the drinking water in some parts of India? 1. Arsenic 2. Sorbitol 3. Fluoride 4. Formaldehyde 5.
2013Protected Areas & Wildlife
Consider the following pairs: 1. Nokrek Biosphere Reserve : Garo Hills 2. Loktak Lake : Barail Range 3. Namdapha National Park : Dafl
Frequently Asked Questions
What is the correct answer to this UPSC 2013 Environment & Ecology question?▼
The correct answer is option (b): 1, 2, 3, 5 and 6 only. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Pollution & Waste Management question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2013, GS Paper 1, as Question 29. It falls under Environment & Ecology > Pollution & Waste Management.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Pollution & Waste Management?▼
UPSC has asked 38 questions from Pollution & Waste Management (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.