Hazardous Waste Management [NTA-NET (UGC-NET) Environmental Science (89)]: Questions 1 - 3 of 3

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Question 1

Appeared in Year: 2020

Question Assertion-Reason▾

Assertion(Ꭺ)

Hazardous material such as lead, mercury and hexavalent chromium in one form or other are present in electronic waste.

Reason(Ꭱ)

Landfilling of electronic waste is the best operation from the environmental viewpoint.

Choices

Choice (4)Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

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Question 2

Appeared in Year: 2016

Question Match List-Ⅰ List-Ⅱ▾

Match the List-I and List-II. Identify the correct answer from the codes given below: (September)

List-Ⅰ (Organic Compound)List-Ⅱ (Source)
(A)

Methane

(i)

Coal tar

(B)

Benzo [a] pyrene

(ii)

Soil

(C)

Terpene

(iii)

Plants

(D)

Humic acid

(iv)

Ruminants

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iv)
  • (i)
  • (iii)
  • (ii)

b.

  • (i)
  • (iii)
  • (iv)
  • (ii)

c.

  • (iv)
  • (ii)
  • (i)
  • (iii)

d.

  • (i)
  • (iv)
  • (ii)
  • (iii)

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Question 3

Appeared in Year: 2020

Question MCQ▾

Which among the following is the major product of slow pyrolysis of biomass? (29 September Evening Shift)

Choices

Choice (4)Response

a.

Carbon monoxide

b.

Biogas

c.

Carbon dioxide

d.

Bio char

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