Ecology and Environment (NEET Biology): Questions 118 - 124 of 227

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Question number: 118

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

The side effects of heavy and constant grazing is that the

Choices

Choice (4) Response

a.

Lower compact layer makes root penetration difficult.

b.

Upper layer of the soil are loosened and are eroded.

c.

Lower layer are made more compact and root respiration is interfered with.

d.

All the above.

Question number: 119

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

MCQ▾

Question

Decrease in rate of mitosis in root tips is caused by

Choices

Choice (4) Response

a.

Pb

b.

Cu

c.

CO2

d.

SO2

Question number: 120

» Ecology and Environment » Ecosystem » Nutrient Cycling

MCQ▾

Question

Biogeochemical cycles are of

Choices

Choice (4) Response

a.

Four types

b.

Two types

c.

Five types

d.

Three types

Question number: 121

» Ecology and Environment » Ecosystem » Pyramids of Number, Biomass, Energy

MCQ▾

Question

Mr. X is eating curd/yoghurt. For this food intake in a food chain he should be considered as occupying

Choices

Choice (4) Response

a.

Fourth trophic level

b.

Third trophic level

c.

First trophic level

d.

Second trophic level

Question number: 122

» Ecology and Environment » Environmental Issues » Radioactive Waste Management

MCQ▾

Question

What percentage of solar radiation is reflected in the outer space by troposphere?

Choices

Choice (4) Response

a.

90 %

b.

34 %

c.

17 %

d.

10 %

Question number: 123

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

MCQ▾

Question

If at high altitude, birds become rare, the plants likely to disappear are

Choices

Choice (4) Response

a.

Rhododendrons

b.

Oak

c.

Pine

d.

Orchids

Question number: 124

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

Mycorrhiza, a relationship between fungi and roots of higher plants is

Choices

Choice (4) Response

a.

Parasitic relationship

b.

Epiphytic relationship

c.

Saprophytic relationship

d.

Symbiotic relationship

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