Question # 1

As it passes into food chain, the concentration of DDT

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Remains same

Decreases

Increases

Unpredictable

carbon monoxide is harmful to human beings as it.

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Is carcinogenic

Is antagonistic to CO2

Has higher affinity for haemoglobin as compared to oxygen

Is destructive to O3

The action of all the relations of all the organism to their environment is called

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Biology

Botany

Ecology

Archiology

Ozone depletion in stratosphere will result in

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Forest fires

Increased incidence of skin cancer

Global warming

None of the above

The expected specific wastes of textile industry is

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Cloth residue

Fibre residue

Dyes

All above

Ozone is stratosphere is depleted by

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CF2Cl2

C7F16

C6H6Cl6

C6F6

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

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Sulphuric acid

Nitric acid

Acetic acid

Sulphurous acid

Burning of fossil fuels is the main sources of which of the following pollutant.

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Nitrogen oxide

Nitric oxide

Nitrous oxide

Sulphur dioxide

Which of the following pollutant results from combustion of fossil fuels.

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SO2

NO2

CO

All above

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 is renewable resources of energy.

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Hydropower

Wind power

Solar power

All 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

The reduction in ozone layer would lead to

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Temperature chages

Rainfall failure

Increase uv radiation on earth

All above

Which of the following chemical strong oxidizing agent is used in COD test.

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KMnO4

H2SO4

CH3COOH

K2Cr2O7

Which of the following phenomenon are driven by solar energy.

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Winds

Water cycle

Production of biomass

All above

The hardness of water i s due to the presence of dissolved soluble salts of.

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Calcium

Megnesium

Iron

All above

In plant noise control, which of the following method is used for reducing noise

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Plant planning

Control at the source

Control of radiated noise

All above

Which of the following pollutant result from combustion of fossil fuels.

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SO2

NOx

CO

All above

Which of the following statement is not correct with respect to radioactive pollutnats.

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Carcinoma and breast cancer

Leukemia

Increases biological immune system

Somatic and generic disorder

Which of the following acids acts as acid waste from coal mines.

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HCl

HNO3

CH3COOH

H3PO4

The smog is essentially caused by the presence of.

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O3 and N2

O2 and N2

Oxides of sulphur and nitrogen

O2 and O3

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