Question # 1

Which of the following disposal method is used or municipal wastes.

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Compaction

Composting

Recycling

Chemical processing

All above

Most Hazardous metal pollutant of automobile exhaust is.

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Tin

Mercury

Cadmium

Lead

Which of the following compounds has fishing ordure

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ammonia

Organic sulphides

Amines

H2S

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

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Nitrification

Denitricication

Ammonification

All above

Ozone layer of upper atmosphere is being destroyed by

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chlorofluorocarbons

SO2

Photochemical oxidants O2 and CO2

Smog

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 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 techniques are used for minimizing water pollution.

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Stabilization of ecosystem

Recharge of the waste

Waste treatment

All above

For an average exposure of 8 hours per day, the maximum permissible concentration limit of CO in the atmosphere is.

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50 ppm

500 ppm

10³ ppm

20 ppm

Solar energy mainly light originates from sun due to.

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Addition relations

Displacement reactions

Thermonuclear reactions

Substitution reactions

Drained sewage has B.O.D.

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More than that of water

Less than that of water

Equal to that of water

None of the above

Which of the following is atmospheric pollutant.

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CO2

CO

O2

N2

Which of the following pollutants does not a leave a residue.

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Air pollutant

Chemical pollutant

Soil pollutant

Noise pollutant

Which of the following is major sink for carbo monoxide.

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Water

Soil

Animal respiration

Salts dissolved in ocean water

Which of the following phenomenon are driven by solar energy.

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Winds

Water cycle

Production of biomass

All above

Which of the following statement is related with CO.

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It is a colorless and tasteless gas

It has less affinity to words hemoglobin

It has a boiling point of -192 ^oC

It is a dangerous asphyxiant

Photochemical among is related to pollution of

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Air

Water

Soil

All of the above

Which of the following gas protects us form harmful effect of uv radiation.

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SO2

NO2

CO

O3

Which of the following substance acts as gaseous pollutant.

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NO

NO2

CO

SO2

All above

A high frequency sound has frequency

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100 Hz

200 HZ

300 Hz

500 Hz

The expected specific wastes of textile industry is

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Cloth residue

Fibre residue

Dyes

All above

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