C1
- Created by: adambimson
- Created on: 10-02-16 15:29
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- C1
- The evolution of the universe
- The volcanos gave out the gases into the atmosphere.
- The early atmosphere contained mainly carbon dioxide and water vapour.
- A lot of the carbon dioxide dissolved into the oceans and the green plants also removed some of it from the atmosphere.
- The oceans were formed when the water vapour condensed and the Earth cooled.
- The volcanos gave out the gases into the atmosphere.
- The atmosphere today
- Human activity is changing the atmosphere.
- We are doing things like burning fuels.
- We as humans are constantly adding small amounts of pollutants to the air.
- Nitrogen=78% Oxygen=21% Argon=1%
- Human activity is changing the atmosphere.
- Fossil fuels
- Fossil fuels are hydrocarbons,which means that they are made of hydrogen and carbon and come from crude oil.
- Although, coal is not a hydrocarbon. it contains lots of impurities.
- Burning fossil fuels is an example of oxidation.
- Oxidation is the addition of oxygen
- Reduction is when oxygen is removed.
- Fossil fuels are hydrocarbons,which means that they are made of hydrogen and carbon and come from crude oil.
- Air pollution
- Carbon pollution can cause a number od different problems
- Carbon monoxide is the silent killer. Your red blood cells prefer to carry CO rather than oxygen. Its caused by incomplete combustion.
- Carbon dioxide contributes to global warming. it gets traps heat in our atmosphere, thus causing the world to warm up.
- Carbon particulates are caused by incomplete combustion and stick to structures such as buildings in a soot form.
- Sulphur pollution comes from impurities in the fuel.
- Sulphur causes acid rain, which can affect eco systems and things like statues.
- Nitrogen pollution involves nitrogen from the air.
- Nitrogen oxides are nitrogen dioxide and nitrogen monoxide
- Nitrogen monoxide is made in car engines
- Nitrogen dioxide is made when this nitrogen monoxide meets the oxygen in the air.
- It can cause acid rain.
- Carbon pollution can cause a number od different problems
- Reducing pollution
- We can reduce pollution from power stations.
- 1. by using less electricity 2.find an alternate energy source.
- In cars, we can use catalytic converters to reduce emissions
- A catalytic converter oxidises the carbon monoxide, making it carbon dioxide and reduces the nitrogen monoxide to make nitrogen and oxygen
- Also in cars, we can use alternate fuels, such as biofuels, made out of plants and natural waste and also electric cars.
- We can reduce pollution from power stations.
- The evolution of the universe
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