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Questions

31 The ambient air quality standard (24 hours average) for lead in industrial area is

A 0.65 μg/m³

B 0.75 μg/m³

C 1.0 μg/m³

D 1.5 μg/m³

Answer: Option [D]

32 Thinner particles responsible for deteriorating the air-quality resulting in the damage of vital body organs are referred as PM

A 15.5

B 10.5

C 2.5

D 20.5

View Answer Comment

Answer: Option [C]

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33 The Particulate Matter (PM-10) exhaled from the polluted atmosphere is often filtered out during the process of

A Coughing

B Sneezing

C Both (A) and (B)

D Urination

View Answer Comment

Answer: Option [C]

34 Acceptable “Noise Pollution Level” in India range between:

A 16-35 dec

B 40-45 dec

C 70-100 dec

D 10-15 dec

View Answer Comment

Answer: Option [B]

35 Transboundary pollution (or) Acid rain is caused by:

A Hydrocarbon

B Carbon dioxide

C Carbon monoxide

D Nitrogen oxide and sulphur dioxide

View Answer Comment

Answer: Option [D]

36 Air quality depicting PM-2.5 is more hazardous to

A Old Men and Women

B National Parks

C Botanical Gardens

D Archaeological Monuments

View Answer Comment

Answer: Option [A]

37 Which of the following organisms is most likely to produce greenhouse gases such as nitrous oxide and methane?

A Bacteria

B Fungi

C Green plants

D Earthworm

View Answer Comment

Answer: Option [C]

38 Human Environment Conference-1972 was held at

A Paris

B Geneva

C Stockholm

D Australia

View Answer Comment

Answer: Option [C]

39 Of the following man-made disasters, which is socially induced?

A Arson

B Ozone depletion

C Debris Avalanche

D Salt Water Intrusion

View Answer Comment

Answer: Option [A]

40 The ambient air is stable when the ambient lapse rate is

A Neutrally stable

B Sub-adiabatic

C Hyper-adiabatic

D Super-adiabatic

View Answer Comment

Answer: Option [B]

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