Question # 1

Which of the following is biodegradable pollutant.

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Domestic waste

DDT

Mercury salta

Aluminum foil

The presence of which of the following in drinking water is responsible for mottling of teach.

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Mercury

Iodine

Chlorine

Flourine

Air pollution is not caused by

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Pollen grains

Hydroelectric power

Industries

automobiles

Photochemical smog consist of excessive amount of X in addition to aldehydes ketones, PAN etc. X is.

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Methane

Carbon monoxide

Ozone

Carbondioxide

Ozone layer of upper atmosphere is being destroyed by

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chlorofluorocarbons

SO2

Photochemical oxidants O2 and CO2

Smog

Which of the following substance is colloidal in nature.

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Clay

Al2O3

Fe2O3

All above

Which of the following substances act as pollutant.

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Oils

Greases

Toxins

All above

Result of ozone hole is.

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Acid rain

Global warming

Increased amount of CO2

Greater exposure of earth to U.V. rays.

Which of the following statement is not related with industrial ecology.

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Study of interactions between human activities and its environment

Industrial ecology seeks to optimize the total industrial materials cycle from virgin material to finished product

Industrial impacts on the environment

Economic system are viewed in isolating from their surrounding

Ozone layer of stratosphere requires protection from indiscriminate use of.

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Fungicides, insecticides, bactericides and medicines

Aerosols and high flying jets

Atomic explosions and industrial wastes

Weather ballons

Which of the following process is involved in getting back nitrogen into atomosphere.

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Nitrification

Denitricication

Ammonification

All above

A high frequency sound has frequency

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100 Hz

200 HZ

300 Hz

500 Hz

The range of sound pressure for uncomfortable level is.

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80 - 90 dB

100 - 120 dB

130-140 dB

All above

Which of the following process is not physical in nature.

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Mixing

Flocculation

Sedimentation

Activated sludge process

Which of the following process is a source of nuclear pollution.

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Uranium mining

Uranium processing

Reactor waste

All above

Detergents are known to pollute revers and water ways. However, detergents can be made biodegradable and pollution free by taking.

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cyclic hydrocarbon chain

Shorter hydrocarbon chain

Unbranched hydrocarbon chain

Benzenoid hydrocarbons

The main active contaminants of nuclear reactors are.

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Co- 60

Mn -54

Sr-60

All above

The expected specific waste of paper and allied products industry is.

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Chemicals

Paper and fibre residues

Links

All above

Which of the following cause water pollution.

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Smoke

Automobile exhausts

Aeroplanes

Silt and posticides

Disease caused by eating fish found in water contaminated with industrial waste having mercury is.

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Minamata disease

Bright's disease

Hashimoto's disease

Osteoaclerosis

Which of the following reacts with hemoglobin of blood and produce toxic effect.

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Carbon dioxide

Carbon monoxide

Oxygen

Carbon suboxide

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