JELET 2020 EVS MOCK TEST

JELET 2020 EVS MOCK TEST 

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1: The ‘Montreal Protocol’ is related to

(a)   Land pollution         (b) Atmospheric pollution

(c)    Water pollution      (d) None of these

2: Niche refers to

(a)   Habitat of a number of aquatic species

(b)   Habitat of a number of land species

(c)    Habitat of a single species

(d)   None of these.

3: Medha Patekar is related to

(a)   Chipko Movement

(b)   Silent Valley Movement

(c)    Narmada Bachao Movement

(d)   None of these

4: Which of the following can be used for disinfection of water?

(a)   Chlorine                               (c) ozone

(b)   Hydrogen peroxide              (d) Both (a) and (c)

5: Eutrophication means

(a)   Thermal changes in water

(b)   Filling up of water body with aquatic plants due to extra-nourishment

(c)    Solid waste

(d)   None of these

6: Greenhouse Effect is due to

(a)   Over-cultivation of land

(b)   Testing nuclear weapon

(c)    Some atmospheric gases like CO_2,N₂O and some man-made gases

(d)   None of these

7: BOD means

(a)   Biological Oxygen Demand

(b)   Biochemical Oxygen Demand

(c)    Biggest Oxygen Demand

(d)   Bio Oxygen dissolved

8: Air pollutant which reduces oxygen carrying capacity of haemoglobin is

(a)   Ammonia

(b)   Hydrogen sulfide

(c)    Carbon monoxide

(d)   Sulphur dioxide

9: Which one is a greenhouse gas?

(a)   Oxygen

(b)   Nitrogen

(c)    Carbon dioxide

(d)   Sulphur dioxide

10: Which of the following ozone’s is harmful to public health?

(a)   Stratospheric  ozone

(b)   Tropospheric ozone

(c)    Laboratory ozone

(d)   None of these