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B.Tech (Sem I) Theory Examination, Environment and Ecology Paper Code

1.At the end of secession diverse and stable community is:
(A) Climax community
(B) Pioneer community
(C) Top community
(D)Stable community
2.In a national park, protection is given to the :
(A) Entire fauna
B) Entire flora
(C) Plants and animals
D) Entire ecosystem
3.Which among the following is the most phyototoxic in nature ?
(A) Carbonmonoxide
B) Carbon dioxide
(C) Sulphurdioxide
D) None ofthe above
4.High B.O.D. is a measure of :
(A) Airpollution
B) landpollution
(C) Waterpollution
D) NoisePollution
5.Sound level meter is a device used for measuring :
(A) The noise level
B) Intensity ofnoise
(C) Effect Of Noise
D) None of the above
6.Composting offers a method of processing and recycling of :
(A) Garbage
B) Sewage sludge
(C) Both (A) and (B)
D) Neither (A) nor (B)

7 . Black stem rust disease caused by Puccinia graminis infects :
(A) Wheat and barley
(B) Rice and barberry
(C) Barley and grains
(D) Wheat and barberry
8. What type of pyramid depicts the total amount of living material at various tropic levels of the food chain ?
(A) Energy
B) Number
(C) Biomass
D) All of the above
9. No two different species can occupy the same niche.This principle was put forward by :
(A) Elton
(B) Lindeman
(C) Shelford
(D) Gause
10. Consider the following statements :
Assertion (A) : Dal Lake has become Eutrophic
Reason (R) : Lot of pollution is coming in the form of sewage.
Select the correct answer from the codes given below :
(A) Both (A) and (R) are true, but @) is the conect explanation of(A)
(B) Both (A) and (R) are true, and (R) is not the
conect explanation of (A)
(C) (A) is hue, but (R) is false
(D) (A) is false, but (R) is true t

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