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8 Cards in this Set

  • Front
  • Back

What is the rate of growth of human population called?

Exponential growth

Where is the greatest population increasing?

Developing countries

Why do delve oped countries have the highest rate of pollution?

Burning more fossil fuels

What does the carbon footprint show?

The amount of greenhouse gases given off in a certain time by an individual

What do direct methods do?

Use oxygen probes attached to a computer to show pollution levels

How are indicator species used?

Mayfly larva show clean water


Water louse, blood worm, mussels live in polluted waters


Lichens grow where the air is clean

Advantages of using indicator species?

Cheap


Reliable


Monitors level over long period of time

Advantage of direct method

Accurate results at any time