How do we pollute our environment
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How do we pollute our environment - PowerPoint PPT Presentation

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How do we pollute our environment?. List 5 ways. Air pollution – can you think of any examples?. Water pollution – can you think of any examples?. Land pollution – can you think of any examples?. Impact on the Carbon Cycle. List as many ways that human activity may disrupt the Carbon Cycle

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Impact on the Carbon Cycle

  • List as many ways that human activity may disrupt the Carbon Cycle

  • Use your cycle diagram to help you

  • Discuss

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What are fossil fuels?

  • Fossil fuels are hydrocarbons, primarily coal, petroleum, fuel oil and gas.

  • They formed from the fossilised remains of dead plants and animals by exposure to heat and pressure in the Earth's crust over hundreds of millions of years

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What’s the problem?

  • The burning of fossil fuels by humans is the largest source of emissions of carbon dioxide, which is one of the greenhouse gases that contributes to global warming.

  • This means that the surface temperature of the Earth will rise in response.

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What can we do?

List at least 5

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Indicator species:

  • Looking at LichensLichens are the crusty organisms that grow in places such as on rocks and bricks.

  • You can also find them on gravestones and the side of trees.

  • They range in colour from grey-green to orange and red.

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  • Sulphur dioxide gas is produced when fuels like coal and oil are burned.

  • Some lichens are very sensitive to air pollution

  • In areas of low air pollution:

    -a large variety of different lichen species

    -lichens tend to be big and fluffy

  • In areas of high air pollution:

    -very limited variety of lichen species

    -lichens tend to be small and crusty

    We can use lichens as an indicator species.

    Explain what you think an indicator species is!

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