GK on Environment MCQ Multiple Choice Questions and Answers on Environmental Science or Environmental Management
Here, we are providing some important multiple choice Environment related questions and their answers. You can practice this questions and answers to get easily 2-3 marks in competitive examination such as UPSC, STATE PSC, UGC NET, SSC, CDS etc.
1Q. The atmosphere pressure is measured by-
A. Manometer
B. Barometer
C. Anemometer
D. Technometer
Answer: B. Barometer
2Q. Helium Layer is confined to-
A. Thermosphere
B. Mesosphere
C. Troposphere
D. Ionosphere
Answer: A. Thermosphere
3Q. Which is the most important instrument for weather observation?
A. Barometer
B. Clinometer
C. Radiograph
D. None of these
Answer: A. Barometer
4Q. Hygrometer is an instrument used to record-
A. Relative humidity
B. River flow
C. Ocean currents
D. Wind direction
Answer: A. Relative humidity
5Q. In which layer of the atmosphere do most of the weather phenomenon occur?
A. Stratosphere
B. Mesosphere
C. Ozonosphere
D. Troposphere
Answer: D. Troposphere
6Q. If the atmosphere is cooler, its capacity for holding water vapour is-
A. Constant
B. Lowered
C. Increased
D. None of these
Answer: B. Lowered
7Q. The air is unstable, when its temperature is –
A. Greater than the atmospheric temperature
B. Equal to the atmospheric temperature
C. Less than the atmospheric temperature
D. None of the above
Answer: A. Greater than the atmospheric temperature
8Q. What is the cause of blue in the sky?
A. Absorption of blue light by atmospheric gas
B. Absorption of particular type of radiation by atmosphere
C. Reflection of blue light by earth
D. None of the above
Answer: D. None of the above
9Q. The normal lapse rate in the atmosphere is-
A. 4°C/ km
B. 2°C/ km
C. 6.5°C/ km
D. 7°C/ km
Answer: C. 6.5°C/ km
10Q. The solid component of the earth is called-
A. Troposphere
B. Lithosphere
C. Stratosphere
D. Atmosphere
Answer: B. Lithosphere
11Q. The dominant air of exosphere is-
A. Hydrogen
B. Nitrogen
C. Oxygen
D. Carbon dioxide
Answer: A. Hydrogen
12Q. Radiation inversions occur due to-
A. clouds covering the sky in a winter night
B. clouds reflecting sunlight in a winter day
C. solar radiation reaching on earth
D. cooling of earth’s surface due to emission of radiation
Answer: B. clouds reflecting sunlight in a winter day
13Q. Who first used and defined ‘Ecology’ in 1866?
A. Haeckel
B. H Reiter
C. Charles Elton
D. Odum
Answer: A. Haeckel
14Q. Edaphic factors refers to-
A. altitude
B. water
C. relative humidity
D. soil
Answer: D. soil
15Q. Micro consumers are popularly known as-
A. primary consumer
B. secondary consumer
C. tertiary consumer
D. decomposers
Answer: D. decomposers
16Q. Environmental resistance
A. includes density independent effects
B. helps determine the carrying capacity
C. Both A and B
D. prevents exponential growth from occurring
Answer: C. Both A and B
17Q. Carbon dioxide evolved from soil mainly comes from-
A. microbial respiration
B. soil animal respiration
C. root respiration
D. all of these
Answer: A. microbial respiration
18Q. Who issues the ecomark notification?
A. Ministry of Environment and Forest, Government of India
B. Ministry of Human Health and Family welfare, Government of India
C. Department of Science and Technology, Government of India
D. Bureau of Indian Standards
Answer: A. Ministry of Environment and Forest, Government of India
19Q. A critically endangered species-
A. Do not exist in wild habitat
B. face extremely high risk of extinction in immediate future
C. face high risk of extinction in the medium term future
D. will not face any risk of extinction in future 1000 years
Answer: B. face extremely high risk of extinction in immediate future
20Q. Eco-labelling of commercial products is regulated-
A. ISO 14020
B. ISO 14010
C. ISO 14030
D. ISO 14040
Answer: A. ISO 14020
21Q. The expanded form of ISWM-
A. International Standards of Waste management
B. Indian Standards for waste Material
C. Integrated Solid Waste Management
D. International Solid Waste Management
Answer: C. Integrated Solid Waste Management
22Q. Destructive powers of Tsunami result mainly from its-
A. incredible height
B. unpredictability
C. momentum and long wavelength
D. cold water
Answer: C. momentum and long wavelength
23Q. Tree height can be measured using remote sensing data from
A. ResourceSat
B. CartonSat
C. RISAT
D. LandSat
Answer: B. CartoSat
24Q. Maximum sulphur content is found in which grade of coal-
A. Bituminous
B. sub-bituminous
C. Anthracite
D. Lignite
Answer: A. Bituminous
25Q. Nitrogen fixation in nature is not accomplished by-
A. lightning
B. cyanobacteria
C. rotifers
D. bacteria in root nodules of leguminous plants
Answer: C. rotifers
26Q. Which air pollutant could cause rains to be acidic?
A. dust particles from cement factories
B. insecticide from crop sprays
C. smoke from wood fires
D. Sulphur Dioxide from coal-fired power stations
Answer: D. Sulphur Dioxide from coal-fired power stations
27Q. Which component of a fertile soil is reduced as the result of burning crops?
A. calcium
B. clay
C. humus
D. sand
Answer: C. humus
28Q. Ozone depletion is occurring due to
A. PCB
B. CO
C. PAN
D. none of the above
Answer: D. none of the above
29Q. Ozone is
A. harmful in the upper atmosphere
B. beneficial in the upper atmosphere
C. beneficial in the lower atmosphere
D. harmful in the upper atmosphere and beneficial in the lower atmosphere
Answer: B. beneficial in the upper atmosphere
30Q. Spraying of DDT on crops causes pollution of
A. soil and water
B. air and soil
C. crops and air
D. air and water
Answer: A. soil and water
GK on Environment MCQ Multiple Choice Questions and Answers on Environmental Science or Environmental Management
31Q. The diatomaceous earth is used as
A) chemical insecticides
B) bacteriocide
C) fungicide
D) non chemical insecticides
Answer: B) bacteriocide
32Q. The physical and geotechnical properties of municipal solid waste is
A) specific weight
B) moisture content
C) field capacity
D) all of these
Answer: D) all of these
33Q. Maximum permissible noise as per noise pollution rules 2000 is
A) 75 dB
B) 65 dB
C) 55 dB
D) 45 dB
Answer: A) 75 dB
34Q. The major causes of noise pollution in public areas is
A) loudspeaker
B) telephone
C) radios
D) television
Answer: A) loudspeaker
35Q. The main sources of noise pollution are
A) urbanization
B) industrialisation
C) photochemical smog
D) both A) and B)
Answer: D) both A) and B)
36Q. Latin meaning of word noise is
A) annoyance
B) pleasure
C) seasickness
D) sleeplessness
Answer: C) seasickness
37Q. The noise produced in office is normally at the level of
A) 20 dB
B) 30 dB
C) 40 dB
D) 60 dB
Answer: C) 40 dB
38Q. The range of normal human hearing lies between
A) 500 to 10000 Hz
B) 2000 to 200000 Hz
C) 5000 to 6000 Hz
D) 50 to 15000 Hz
Answer: D) 50 to 15000 Hz
39Q. The threshold of pain to human ears is
A) 50 to 60 dB
B) 30 to 40 dB
C) 120 to 140 dB
D) 160 to 180 dB
Answer: C) 120 to 140 dB
40Q. Sound level meter is a device for measuring
A) the noise level
B) intensity of noise
C) effect of noise
D) none of these
Answer: B) intensity of noise
41Q. Maximum noise permissible during day time in residential areas is
A) decrease in species diversity
B) increase in species diversity
C) greenhouse effect
D) no effect on species diversity
Answer: A) decrease in species diversity
42Q. Active noise cancellation term used for
A) active noise control
B) active noise deduction
C) anti noise act
D) both A) and B)
Answer: D) both A) and B)
43Q. The permissible sound level in commercial area is
A) 75 dB
B) 70 dB
C) 40 dB
D) 45 dB
Answer: C) 40 dB
44Q. The process in which certain non-biodegradable substance go on accumulating in the food chain is known as
A) biomagnification
B) Phytoremediation
C) bioremediation
D) none of these
Answer: A) biomagnification
45Q. Most important cause of soil pollution is
A) iron junks
B) glass junks
C) detergents
D) plastics
Answer: D) plastics
46Q. Which of the following process doesn't evolve carbon dioxide in the air?
A) burning
B) breathing
C) organic decay
D) photosynthesis
Answer: D) photosynthesis
47Q. Why DDT is banned?
A) Long persistence in the environment
B) highly toxic to human
C) kills good insects like butterflies
D) used against mosquito killing
Answer: A) Long persistence in the environment
48Q. The first widespread insecticide, which cause both soil and water pollution is
A) DDT (Dichlorophenyl Trichloroethane)
B) BHC
C) aldrin
D) endrin
Answer: A) DDT (Dichlorophenyl Trichloroethane)
49Q. A landfill site is also known as
A) dump
B) rubbish dump
C) dumping ground
D) all of these
Answer: D) all of these
50Q. The least preferred technique in the disposal of municipal solid waste is
A) incineration
B) composting
C) land filling
D) bricketting
Answer: D) bricketting
