Population and pollution - B2g

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  • Created by: iram_f
  • Created on: 14-12-14 23:09
What pollutes water systems?
Eutrophication, toxic waste (from industry), sewage and oil spills can cause water pollution.
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What is a 'carbon footprint'?
A carbon footprint measures the total greenhouse gas emmitted by a person or organisation over a given timescale (usually a year) - the amount depends upon your lifestyle.
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What is an indicator species?
The presence or absence of an indicator species is used to estimate the levels of pollution. Some organisms, like the alderfly, are sensitive to pollution whilst others, like the bloodworm, tolerate the toxic effects of pollution.
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What are the consequences of exponential growth in the human population?
This in turn means the demand for resource is exponential too so raw materials are used up more quickly, pollution and waste build up and there is competition for basic necessities.
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What causes ozone depletion?
Ozone (O3) is a natural gas in the stratosphere that protects us from the Sun's harmful ultraviolet radiation. CFCs form aerosols and rerigerators have depleted the ozone layer so UV rays can easily enter.
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Other cards in this set

Card 2

Front

What is a 'carbon footprint'?

Back

A carbon footprint measures the total greenhouse gas emmitted by a person or organisation over a given timescale (usually a year) - the amount depends upon your lifestyle.

Card 3

Front

What is an indicator species?

Back

Preview of the front of card 3

Card 4

Front

What are the consequences of exponential growth in the human population?

Back

Preview of the front of card 4

Card 5

Front

What causes ozone depletion?

Back

Preview of the front of card 5

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