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Environment QuestionsPage 1

1.

In a food chain, the solar energy utilized by plants is only
(a)10%
(b)0.01%
(c)0.1%
(d)1%
Comment
Answer is: ANA

2.

The largest ecosystem of the Earth is
(a)Biosphere
(b)Hydrosphere
(c)Lithosphere
(d)Biome
Comment
Answer is: BNA

3.

An artificial ecosystem is represented by
(a)pisciculture tank
(b)agriculture land
(c)aquarium
(d)zoo
Comment
Answer is: CNA

4.

The Sun is a
(a)producer of water
(b)secondary source of energy
(c)primary producer of energy
(d)tertiary producer of energy
Comment
Answer is: CNA

5.

Man can maintain an ecological balance in the biosphere by
(a)deforestation
(b)forestation
(c)suing insecticides and pesticides
(d)understanding the delicated balance in the relative number of organisms
Comment
Answer is: DNA

6.

The term ecology was first used by
(a)G Taylor
(b)Tansley
(c)Ernst Haeckel
(d)Jean Brunhes
Comment
Answer is: CNA

7.

A term biotype means
(a)all individuals having same phenotype
(b)all individuals having same genotype
(c)all individual with different phenotype
(d)all individuals with different genotype
Comment
Answer is: BNA

8.

An ecosystem is a/an
(a)undisturbed natural gas
(b)system of organisms and their environment
(c)area rich in wildlife having no humans
(d)very large area of uniform environment conditions
Comment
Answer is: BNA

9.

All components and individuals in an ecosystem are
(a)individualistic
(b)independent
(c)interdependent
(d)dispensable
Comment
Answer is: CNA

10.

The food web is
(a)a very long straight linked food chain
(b)a moderate sized food chain having many tropic levels
(c)a series of food chains having frequent inter-links
(d)a circular food chain
Comment
Answer is: CNA

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