Ecology and Environment (NEET Biology): Questions 133 - 137 of 227

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Question number: 133

» Ecology and Environment » Environmental Issues » Agrochemicals and Their Effects

MCQ▾

Question

Noise pollution is created if noise is in excess to

Choices

Choice (4) Response

a.

40 - 65 db

b.

70 - 75 db

c.

50 - 60 db

d.

80 - 99 db

Question number: 134

» Ecology and Environment » Organisms and Environment » Habitat and Niche

MCQ▾

Question

In the mountains, there is a lot of moisture and water and still the plants are xerophytes, because

Choices

Choice (4) Response

a.

Rocks of mountains cannot absorb water.

b.

Water turns into snow on mountains.

c.

Water runs away due to the presence of slopes and cannot be used by plant (physiological dryness).

d.

Question does not provide sufficient data or is vague

Question number: 135

» Ecology and Environment » Environmental Issues » Air Pollution and Its Control

MCQ▾

Question

Photochemical smog is related to the pollution of

Choices

Choice (4) Response

a.

Water

b.

Noise

c.

Air

d.

Soil

Question number: 136

» Ecology and Environment » Organisms and Environment » Habitat and Niche

MCQ▾

Question

Which of the following changes would be likely to make terrestrial life on this planet impossible?

Choices

Choice (4) Response

a.

A decrease in mean temperature by 10 degree C.

b.

Disappearance of the moon.

c.

Change in the orbit of the earth from an ellipse to a surface of the earth.

d.

Change in atmosphere permitting the entire solar radiation reaching the upper atmosphere to penetrate to the surface of the earth.

Question number: 137

» Ecology and Environment » Organisms and Environment » Habitat and Niche

MCQ▾

Question

The change of the lighter colored variety of peppered moth Biston betularia to its darker variety (carbonaria) is due to

Choices

Choice (4) Response

a.

Deletion of a segment of gene due to wings of moth resulting in darker variety.

b.

Translocation of a block of genes in chromosomes in response to heavy carbons.

c.

Industrial carbon deposited on the wings of moth resulting in darker variety.

d.

Mutation of single Mendelian gene for survival in the smoke-laden industrial environment.

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