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Pollution Chapter 2 > Pollution > Flashcards

Pollution Flashcards

1
Q

Distinguish between pollution and pollutants ?

A

Pollution :- the process of making air water soil etc dirty or impure so that it becomes harmful for our health
Pollutants :- pollutants are the substances that pollute the air water soil .

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2
Q

What are the different types of pollutants

A 
Primary pollutants
Secondary pollutants 
Biodegradable pollutants 
Non biodegradable pollutants 
Anthropogenic pollutants
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3
Q

How is air pollutants classified ?

A

Natural contaminants such as pollen grain and bacteria
Aerosols such as dust mist fog
Vapours and noxious gases such as so2 nitrogen oxides

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4
Q

Classify water pollutants by giving examples ?

A

Biological agents - virus bacteria algae fungus
Organic chemical agents - oil pesticides
Inorganic chemical agents -salts acid nitrates
Physical agents -suspended solids and heat

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5
Q

How does marine water get polluted ?

A

The introduction by man directly or indirectly of substances or energy into the marine environment cause pollution of marine environment

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6
Q

What are the different types of soil pollutants

A

Organic substances
Inorganic substances
Radioactive substances

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7
Q

What are the different types of noise pollution

A

Noise produced by transportation

Industrial noise

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8
Q

What are the sources of noise pollution

A 
Traffic 
Factories 
Airports 
Construction sites 
Loudspeakers
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9
Q

What does CFC and SPM stand for

A

CFC- chlorofluorocarbons

SPM-suspended particulate matter

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10
Q

List 3 organic and inorganic water pollutants

A

Organic
Food pro pressing wastes
Debris of trees and bushes
Insecticides

Inorganic
Chemical wastes
Heavy metals from motor vehicles
Acidity cause by industries

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11
Q

What is bio medicinal waste

A

It consists of hospital waste in the form of solids liquids and laboratory waste

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12
Q

Name any 3 pesticides

A

DDT
Aldrin
Dieldrin

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13
Q

What are the sources of radioactive pollutants

A

Natural - emitted from cosmic and uv rays present in the atmosphere
Man made -emitted from the nuclear reactors atomic tests and nuclear bombs

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14
Q

Define bio magnification

A

Bio magnification is a rise in the concentration of a substance like a pesticide in a food chain

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15
Q

What is acid rain

A

Acid rain is the decomposition of acidic components in rain snow fog

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16
Q

What is smog

A

Smog is a dirty poisonous air that can cover a whole city

17
Q

Differentiate bw suspended and dissolved impurities

A

Suspended -which do not dissolev and remain suspended eg mud sand
Dissolved which complete dissolve and don not remain suspended eg : salt

18
Q

What does pcb mean

A

Pcb means printed circuit board

Pollution Chapter 2 (1 decks)

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