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:

[UPSC Civil Services Exam – 2013 Prelims]

(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


Answer: (b)        

Explanation:

The following table presents some of the major elements that can be found in e-waste and their associated negative impacts.

Elements Harmful effects
Lead Affects the nervous system leading to behavioural changes, lower IQ, and negative impact on kidneys
Mercury Exposure causes dermatitis, sensory impairment, memory loss, muscle weakness, reduced fertility, etc.
Cadmium Can cause severe lung and kidney damages, and in children, may cause learning and neuromotor defects
Chromium Has carcinogenic properties and may damage DNA
Beryllium Can cause beryllium sensitization, chronic and acute beryllium disease, and lung cancer
PVC Chlorine bioaccumulation can lead to air, water, and soil pollution, reproductive and developmental health effects
PFOA Has severe impact on pregnant women leading to spontaneous abortions, stillbirth, low birth weight, etc.
Sulphur Can damage the heart, kidneys, and liver
BFRs May lead to thyroid problems, liver problems, and improper development of the nervous system

 

 

Consider the following statements:                                                                   The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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Consider the following statements:                                                         The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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