Ecology and Environment (NEET Biology): Questions 33 - 39 of 230

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Question number: 33

» Ecology and Environment » Ecosystem » Energy Flow

MCQ▾

Question

Transfer of energy from one trophic level to another trophic level is according to the second law of thermodynamics. The efficiency of energy transfer from herbivorous to carnivorous is

Choices

Choice (4) Response

a.

5%

b.

50%

c.

25%

d.

10%

Question number: 34

» Ecology and Environment » Environmental Issues » Greenhouse Effect and Global Warning

MCQ▾

Question

Checking of re-radiating heat by atmospheric dust, O3, CO2 and water vapour is called

Choices

Choice (4) Response

a.

Radioactive effect

b.

Ozone layer effect

c.

Solar effect

d.

Green house effect

Question number: 35

» Ecology and Environment » Biodiversity and Its Conservation » Concept of Biodiversity

MCQ▾

Question

Convention on biodiversity came into force on

Choices

Choice (4) Response

a.

3 October 1994

b.

4 October 1993

c.

29 Dec. 1993

d.

6 June 1992

Question number: 36

» Ecology and Environment » Biodiversity and Its Conservation » Biodiversity Conservation

MCQ▾

Question

Gene banks comprise

Choices

Choice (4) Response

a.

Seed banks, orchards, tissue culture and cryopreservation.

b.

Seed banks, tissue culture and cryopreservation.

c.

Tissue culture and cryopreservation.

d.

Seed banks and cryopreservation.

Question number: 37

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

Plants grow sparsely in arid regions of the world

Choices

Choice (4) Response

a.

Because of several factors combining together.

b.

Only because of high temperature.

c.

Because no seeds full on their soil.

d.

Because the soil is sandy.

Question number: 38

» Ecology and Environment » Environmental Issues » Greenhouse Effect and Global Warning

MCQ▾

Question

Which gas of the atmosphere holds up ultraviolet rays?

Choices

Choice (4) Response

a.

O3

b.

O2

c.

CH4

d.

N2

Question number: 39

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

In an ecosystem, the population of

Choices

Choice (4) Response

a.

Primary consumers out number primary producers.

b.

Primary producers are more than that of primary consumers.

c.

Primary consumers are least dependent upon primary producers.

d.

Secondary consumers are largest because they are powerful.

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