Question # 1

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

Which of the following is not a chemical pollutant.

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Solid waste

Noiso

Insecticides

Liquid waste

SO2 is generated from which of the following industry.

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Drying and packing

Paper

Pulp

paper and pulp

Particulate from soil and mineral primarily contains

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Sodium compounds

Calcium compounds

Silicon compounds

Calcium, aluminum and silicon compounds

Which of the following substance is not present in acid rain.

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Sulphuric acid

Nitric acid

Acetic acid

Sulphurous acid

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 health effect is caused by lead.

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Cancer

Neurotoxin

Hypertension

Kidney damage

Photochemical among is related to pollution of

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Air

Water

Soil

All of the above

Environmental pollution effects.

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Biotic component

Plants only

Humans only

Both biotic and abiotic components of environment

Bioconversion of biomass can be used for.

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Heating purposes

Power production

Methane production

All of the above

Which of the following statement is not correct with respect to harmful effects of ground water pollution.

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It causes lungs cancer

It causes jaundice

It damages crops

It helps to prevent epidermises

Which of the following biogeochemical cycle is not component of ecosystem.

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Carbon cycle

Potassium cycle

Oxygen cycle

Nitrogen cycle

Which of the following trace elements may be present in the particulate materials.

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Cadmium

Nickel

Mercury

Lead

All of the above

Which of the following play significant role in depletion of ozone layer.

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Oxides of nitrogen

Oxides of carbon

Oxides of sulphur

None of above

Most Hazardous metal pollutant of automobile exhaust is.

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Tin

Mercury

Cadmium

Lead

Which of the following statement is no true with respect to nitrogen dioxide.

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It is produced by the oxidation of NO

Its small concentration has been detected to lower stratosphere

It is major pollutant

It does not absorb sunlight.

Eutrophication is process which involves

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Depletion of ozone layer

Increase in the concentration of ozone in water

Decrease in the concentration of dissolved oxygen in water by algae

Decrease in the level of SO2 in air

DDT is

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Biodegradable pollutant

Nodegradable contaminant

Air pollutant

An antibiotic

Which of the following energy is trapped by the autotrophic organisms.

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Mechanical energy

Electrical energy

Radiant energy

Electronic energy

Ground water is threatened with pollution from which of the following source.

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Domestic wastes

Industrial wastes

Agricultural wastes

All above

Ozone is stratosphere is depleted by

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CF2Cl2

C7F16

C6H6Cl6

C6F6

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