Question # 1

Minamata disease is due to pollution of

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Organic waste into drinking water

Oil spill in water

Industrial waste containing mercury into fishing water

Arsenic into the atmosphere

Which gasses are produced from landfills

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NH₃

H₂S

N₂

All of these

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

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Mercury

Lead

Nitrogen oxide

Sulphuric oxide

SO₂and NO₂produce pollution by increasing

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Alkalinity

Acidity

Neutrality

Buffer action

NO and NO₂gases in atmosphere are represented by

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NO

NO₄

NO_x

N_xO_y

Burning of fossil fuels is the main source of pollution

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Nitrogen oxide

Nitric oxide

Nitrous oxide

Sulphur dioxide

Ozone depletion in stratosphere shall result in

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Forest fires

Increased incidence of skin cancer

Global warming

None of the above

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

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SO₂

NO₂

CO

A and b only

Which is not a method for solid waste management

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Landfill

Incinerating

Recycling

None of these

Which of the following forms a toxic substance in blood by combing with hemoglobin?

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Carbon dioxide

Carbon monoxide

Oxygen

Methane

The 95.5% mass of Lithosphone is made of 11 elements i.e. O₂, Si, Al, Fe, Ca, Na, K, Mg, Ti, H₂and P. which element is present in trace amount

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Iodine

Bromine

Lead

Carbon

Cyclone collector is used for minimizing

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Radioactive pollution

Air pollution

Noise pollution

Water pollution

The toxic organic compounds and heavy metals and metalloids results in contamination of

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Surface water

Ground water

Both surface and ground water

Neither surface nor ground waters

UV radiations bring about

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Skin cancer

Mouth cancer

Lung cancer

Liver cancer

The amount of Si in the lithosphere is about

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27.72%

30.35%

35.30%

40.21%

Classical smog occurs in palces of

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Excess SO₂

Low temperature

High temperature

Excess NH₃

Potable water is considered to be

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Safe for human consumption

Not safe for human consumption

The surface water

The ground water

Ozone hole is maximum over

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Europe

Antarctica

Asia

Africa

Atmosphere of big/metropolitan cities is polluted most by

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Automobile exhausts

Pesticide residue

Household waste

Radio-active fall out

Ozone hole refers to

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Hole in ozone layers

Reduction in thickness of ozone layer in stratosphere

Reduction of thickness of ozone in troposphere

Increase concentration of ozone

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic

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It attaches to sulphur of the disulphide link

Hg is a heavy metal

Hg is liquid at room temperature

Hg is non reactive chemically

Hydrocarbans, SO₂, CO, NH₃, nitrogen oxides and compounds of fluorine are called

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Primary pollutant

Secondary pollutant

Tertiary pollutant

None of these

Increased asthmatic attacks in certain seasons are related to

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Inhalation of seasonal pollen

Eating of seasonal vegetables

Low temperature

Wet and dry environment

In the atmosphere, CO₂is about

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0.01%

0.03%

0.05%

0.09%

BOD is

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Biological oxygen deficit

Biosphere oxygen demand

Biological oxygen demand

None of the above

SO₂Makes ______ acid rains

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Carbonic acid

Sulfuric

Nitric acid

All of these

The amount of oxygen in the lithosphere is about

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35.50%

40.60%

56.60%

50.50%

Photochemical smog is caused by

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CO

CO₂

O₃

NO₂

Sulphur dioxide affects

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Cell wall

Plasmodesmata

All membrane systems

Nucleus

Chloroflurocarbon releases a chemical harmful to ozone

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Fluorine

Chlorine

Nitrogen peroxide

Sulphure dioxdie

Environmental pollution affects

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Biotic components

Plants only

Man only

Biotic and abiotic components of environment

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