C1c - Clean Air OCR Gateway B GCSE Science

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  • Created on: 05-02-13 20:40
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Carbon Chemistry
C1c) Clean air/ the earth's atmosphere
Photochemical smog is happening more because of increase in population and motor
vehicles. Gases from vehicles react together in bright sunlight producing smog
Photochemical smog and industrial smog
Noble Gases
Lesser gases in the atmosphere, group zero of the periodic table, single atoms ­ monatomic,
unreactive, have low boiling points, and have low densities.
Photosynthesis (Chloroplast)
Carbon Dioxide + Water Glucose + Oxygen
Respiration (Lungs and mitochondria)
Glucose + Oxygen Carbon Dioxide + Water
Glucose and Oxygen is needed for respiration to occur.
Glucose and Oxygen is the product of photosynthesis.
Animals depend on photosynthesis because of the oxygen produced by the plant.

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Changing Atmospheric Composition
The percentage of Carbon Dioxide has increased, this is due to:
Deforestation ­ The cutting down of trees, less photosynthesis take place
Increased population ­ the worlds energy requirements increase
The origin of the Earth's atmosphere ­ How it all started with the gases.
Pollutants are created by human activity that harm the environment
Carbon Monoxide: Incomplete combustion of fossil fuels
Carbon Dioxide: Green house gas, traps infrared radiation and raises temp.…read more


lisa linsdell

Some good revision notes for this topic. Clearly set out and gives additional knowledge needed for higher tier.

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