Environmental Studies Questions and Answers - Set 20 | Environmental Science Quiz GkSeries

Questions

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)

View Answer

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

View Answer

Answer: Colloids

4 Water storage capacity of which soil is maximum ?

1 Sandy loam

2 Loam

3 Clay loam

4 Heavy clay

View Answer

Answer: Heavy clay

5 Which among the following is not a hot desert ?

1 Sahara

2 Kalahari

3 Thar

4 Gobi

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

Answer: consumed per unit gross domestic product

10 Which is the cleanest fuel for power generation ?

1 Coal

2 Uranium

3 Hydrogen

4 Water

View Answer

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

View Answer

Answer: Seamount

12 Which form of As is most toxic ?

1 As+3

2 As+2

3 As+6

4 As+4

View Answer

Answer: As+3

13 Noise climate is represented by

1 L10 – L90

2 Leq

3 L50

4 (L10 – L90)2 / 60

View Answer

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

View Answer

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

View Answer

Answer: Nitrates

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