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Pollution PowerPoint Presentation

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Description : Available Pollution powerpoint presentation for free download which is uploaded by honey an active u... Read More

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Published on : Feb 10, 2014
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Slide 1 - How do we pollute our environment? List 5 ways
Slide 2 - Air pollution – can you think of any examples?
Slide 3 - Water pollution – can you think of any examples?
Slide 4 - Land pollution – can you think of any examples?
Slide 5 - 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
Slide 6 - 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
Slide 7 - 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.
Slide 8 - Fossil Fuels
Slide 9 - What can we do? List at least 5
Slide 10 - Indicator species: Looking at Lichens Lichens 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.
Slide 11 - Lichens 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!
Slide 12 - This powerpoint was kindly donated to is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.