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Environmental Studies Questions and Answers for Competitive Exams | Environmental Studies Quiz Set 20

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Free Download as PDF Environmental Studies Quiz Questions and Answers for Competitive Exams or solved MCQs with answers. These quiz objective questions are helpful for competitive exams SSC, UPSC, IAS, IPS, CDS, NDA, Railways or RRB, psc exams of Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Gujarat, Haryana, Himachal Pradesh, Jammu & Kashmir, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Orissa, Punjab, Rajasthan, Sikkim, Tamil Nadu, Tripura, Uttar Pradesh, West Bengal, Chhattisgarh, Uttarakhand, Jharkhand, Telangana etc.
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(1) Out of the total fresh water volume of the frozen form constitutes
(1) 60 %
(2) 70 %
(3) 70 %
(4) 50 %
Answer: 70 %
(2) If Q = stream flow, P = precipitation, E evapotranspiration, S = net change in storage and T = net underground transfers, then the basic water balance equation is
(1) Q = (P + E) – ( S + T)
(2) Q = (P – E) – ( S + T)
(3) Q = (P – E) + ( S + T)
(4) Q = (P – E) – ( S – T)
Answer: Q = (P – E) + ( S + T)

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(3) Particles with a diameter smaller than 0.002 mm are classed as
(1) Cobble
(2) Pebble
(3) Silt
(4) Colloids
Answer: Colloids
(4) Water storage capacity of which soil is maximum ?
(1) Sandy loam
(2) Loam
(3) Clay loam
(4) Heavy clay
Answer: Heavy clay
(5) Which among the following is not a hot desert ?
(1) Sahara
(2) Kalahari
(3) Thar
(4) Gobi
Answer: Gobi
(6) In an ideal MHD power generator, the maximum power P output varies with the velocity (u) of conducting fuel as
(1) P max ∝ u
(2) P max ∝ u2
(3) P max ∝ u3
(4) P max ∝ u3/2
Answer: P max ∝ u2
(7) Which is the most efficient energy source for producing electricity ?
(1) Nuclear power
(2) Hydro power
(3) Wind power
(4) Solar power
Answer: Nuclear power
(8) Which of the following types of coal has highest water content ?
(1) Anthracite
(2) Bituminous coal
(3) Lignite
(4) Subbituminous coal
Answer: Lignite
(9) Energy intensity is the amount of energy
(1) consumed per unit gross domestic product
(2) produced per year per unit area of the country
(3) consumed per year per unit area of the country
(4) consumed per year per unit area of the country
Answer: consumed per unit gross domestic product
(10) Which is the cleanest fuel for power generation ?
(1) Coal
(2) Uranium
(3) Hydrogen
(4) Water
Answer: Hydrogen
(11) The mountain that rises a kilometre or more above the surrounding sea floor is called
(1) Oceanic island
(2) Atoll
(3) Seamount
(4) Island arc
Answer: Seamount
(12) Which form of As is most toxic ?
(1) As+3
(2) As+2
(3) As+6
(4) As+4
Answer: As+3
(13) Noise climate is represented by
(1) L10 – L90
(2) Leq
(3) L50
(4) (L10 – L90)2 / 60
Answer: L10 – L90
(14) The classical smog is mainly composed of
(1) NOx and smoke particulates
(2) O3 and SO2
(3) SO2 and NOx
(4) SO2 and smoke particulates
Answer: SO2 and smoke particulates
(15) “Blue baby syndrome” is caused due to intake of water high in
(1) Ammonia
(2) Nitrates
(3) Sulphates
(4) Sulphides
Answer: Nitrates

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