Ecology and Environment-Environmental Issues (NEET (National Eligibility cum Medical Entrance Test) Biology): Questions 43 - 47 of 71

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Question number: 43

» Ecology and Environment » Environmental Issues » Solid Waste Management

Appeared in Year: 2016

MCQ▾

Question

A lake which is rich in organic waste may result in

Choices

Choice (4) Response

a.

Increased population of fish due to lots of nutrients

b.

Mortality of fish due to lack of oxygen

c.

Drying of the lake due to algal bloom

d.

Increased population of aquatic organisms due to minerals

Question number: 44

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

Appeared in Year: 2002

MCQ▾

Question

5th June is celebrated as [UP CPMT]

Choices

Choice (4) Response

a.

World Red Cross day

b.

World forest day

c.

World environment day

d.

World food day

Question number: 45

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

Appeared in Year: 2009

MCQ▾

Question

DDT residues are rapidly passed through food chain causing biomagnification because DDT is: - (CBSE)

Choices

Choice (4) Response

a.

Non-toxic to aquatic animals

b.

Water soluble

c.

Lipo soluble

d.

Moderately toxic

Question number: 46

» Ecology and Environment » Environmental Issues » Solid Waste Management

Appeared in Year: 2010

MCQ▾

Question

Select the correct statement from the following: (CBSE)

Choices

Choice (4) Response

a.

Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria

b.

Biogas is produced by the activity of aerobic bacteria on animal waste

c.

Biogas commonly called Gobar gas, is pure methane

d.

Methanobacterium is an aerobic bacterium found in rumen of cattle

Question number: 47

» Ecology and Environment » Environmental Issues » Ozone Depletion

Appeared in Year: 2006

MCQ▾

Question

Montreal Protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year (CBSE)

Choices

Choice (4) Response

a.

1988

b.

1986

c.

1987

d.

1985

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