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Global warming - the causes
The greenhouse effect- the dust raps heat which heats up the planet
Natural-it has always been changing
Solar activity - amount of radiation coming from the sun
The solutions ...
Using renewable energy like hydroelectric and tidal power
Car manufactures using other fuels like bio diesel,hydrogen and batteries
Catalytic converters
Public transport
Forms of pollution like acid rain
Acid rain - caused by the burning of fossil fuels-changes the pH in rain clouds
Human waste- sewage,refuse,litter
Eutrophication- an excess of nitrates leading to a lack of o2 and plants dying -leads to major health problems for humans
Radioactive pollution- nuclear waste which takes millions of years to decay- can get mutations - cancer
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