281. Which of the following is a secondary air pollutant?
(a) SPM
(b) PAN
(c) SO2
(d) NO2
Ans. b
282. The permissible concentration of PM 10 in the air is
a) 60μg/m3
b) 40μg/m3
c) 50μg/m3
d) 20μg/m3
Ans. a
283. CNG is a
(a) Polluted fuel
(b) Clean fuel
(c) Harmful fuel
(d) None
Ans. b
284. Pollution of water is responsible for
(a) Oil refineries
(b) Paper factories
(c) Sugar mills
(d) All
Ans. d
285. Chlorofluorocarbon is used in
(a) Refrigerators
(b) Air conditioners
(c) Perfumes
(d) All
Ans. d
286. The process of burning of municipal solid waste at high temperature is called
(a) Incineration
(b) Composting
(c) Land filing
(d) Shredding
Ans. a
287. Which of the following is a biodegradable waste?
(a) Polythene bags
(b) Synthetic fiber
(c) Food waste
(d) Paper
Ans. c
88. In which method of disposal of municipal solid waste, the waste is dumped in the soil?
a) Incineration
b) Composting
c) Land filing
d) Shredding
Ans. c
289. Which of the following is correct regarding disposal of waste by land filling?
(a) Economical method
(b) Preferred in low lying areas
(c) Foul gases are not produced
(d) Separation of different types of waste not required
Ans. c
290. The density of ash produced in the municipal solid waste is
(a) 100 kg/m3
(b) 450 kg/m3
(c) 700 kg/m3
(d) 1000 kg/m3
Ans. c
291. The waste produced in cotton mills are
(a) Municipal solid waste
(b) Non biodegradable waste
(c) Hazardous waste
(d) Non hazardous waste
Ans. d
292. Which of the following is not the land filling method?
(a) Bangalore method
(b) Area method
(c) Depression method
(d) Trench method
Ans. a
293. …………… is a liquid that passes through solid waste and extract suspended impurities from it.
(a) Leachate
(b) Sludge
(c) Distilled water
(d) Municipal waste
Ans. a
294. Which of the following is not the municipal solid waste?
(a) Radioactive substance
(b) Ashes
(c) Food waste
(d) Rubbish
Ans. a
295. Which of the following waste can be decomposed by bacteria?
(a) Radioactive substance
(b) Ashes
(c) Food waste
(d) Rubbish
Ans. c
296. ……………. is the cutting and tearing of municipal solid waste.
(a) Land fills
(b) Shredding
(c) Pulverization
(d) Composting
Ans. b
Click on the link below for study Material on People and Environment
http://www.simplynotes.in/people-and-environment/
Click on the link below for more study material on UGC NET Paper 1 :
http://www.simplynotes.in/entrance-exams/important-dates/ugc-cbse-nta-net-paper-1/
Follow us on Facebook for more updates on NTA UGC NET Study Material, Free Mock Test Series and Daily MCQS
https://www.facebook.com/simplynotes.in/
