1) Zone of atmosphere near the ground is-
(A) Stratosphere
(B) Mesosphere
(C) Troposphere
(D) Homosphere
2) In India, sacred forests are located in-
(A) Karnataka
(B) Kerala and Meghalaya
(C) Maharashtra
(D) All of the above
3) Extinction of species included
(A) Natural extinction
(B) Mass extinction
(C) Anthropogenic extinction
(D) All of the above
4) The 'IUCN Red List System' was initiated in the year-
(A) 1963
(B) 1969
(C) 1992
(D) 2000
5) Biodiversity is an abbreviation of-
(A) Biological rhythm
(B) Abiotic factor
(C) Biotic factor
(D) Biological diversity
6) Fluorides enter plant leaves through-
(A) Leafbase
(B) Root
(C) Stomata
(D) Stem
7) Any substance which causes pollution is called-
(A) Infection
(B) Pollutant
(C) Co-factor
(D) Inhibitor
8) Benzene is a-
(A) Gaseous pollutant
(B) Liquid pollutant
(C) Solid pollutant
(D) All of the above
9) Which of the following is the most widely used form of renewable energy?
(A) Coal
(B) Fossil fuel
(C) Hydro power
(D) Wood
10) Population size may decrease as a result of-
(A) Emigration
(B) Mortality
(C) Both A and B
(D) Zonation
11) Soil conservation van be best achieved by-
(A) Good plant
(B) Wind screens
(C) Low rainfall
(D) Restricted human activity
12) Water pollution is caused by-
(A) Hydrocarbon gases and growth of phytoplanktons
(B) Industrial effluents
(C) Rain
(D) Decay of aquatic animals bodies
13) The stratosphere ozone depletion leads to-
(A) Forest fires
(B) Global warming
(C) Increase in the incidence of skin cancer
(D) All of the above
14) salinity of the soil is often caused due to-
(A) Excessive addition of rainwater
(B) Excessive leaching
(C) Rapid evaporation of surface water
(D) Accumulation of solvable minerals near or in the surface in arid region
15) Taj Mahal is threatened due to the effect of-
(A) Hydrogen
(B) Desert
(C) Sulphur dioxide
(D) Oxygen
16) Which of the following is the most stable ecosystem?
(A) Ocean
(B) Desert
(C) Forest
(D) Mountain
17) Water pollution can be stopped best by-
(A) Spraying DDT
(B) Treating effluents to remove injurious chemicals
(C) Cultivating useful water plants
(D) Rearing more fishes
18) ozone layer depletion or hole in ozone layer is being chiefly found in-
(A) Russia
(B) South Pole
(C) North Pole
(D) None of these
19) Culture eutrophication is caused by the addition of too many-
(A) Ammonium
(B) Nitrate
(C) Phosphate
(D) All of these
20) The population growth rate,'r' is inversely related to-
(A) Generation time
(B) Age structure
(C) Clutch size
(D) Number of clutches per life time
21) The carrying of a population is determined by its-
(A) Birth rate
(B) Death rate
(C) Limiting resource
(D) Population growth rate
22) The growth of human population is most rapid in the-
(A) Temperate regions
(B) Asia
(C) North America
(D) Tropical and subtropical regions
23) The habitat of a population is the-
(A) Geographic area it covers
(B) Set of conditions and resources it uses
(C) Set of interactions it has with other populations
(D) Places where it lives
24) An ecological community is an assemblage of-
(A) Food webs
(B) Closely related species
(C) Family units
(D) Interacting populations
25) Who among the following is known as "father" Of ecology in India" ?
(A) P. Maheshwari
(B) S. k. kashyap
(C) B. P. Pal
(D) Ramdeo Mishra
Answer Key
1) C
2) D
3) D
4) A
5) D
6) C
7) B
8) B
9) C
10) C
11) A
12) B
13) D
14) D
15) C
16) A
17) B
18) B
19) D
20) A
21) C
22) D
23) D
24) D
25) D
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