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Geography
Geography(Humans and the environment)
| Question | Answer |
|---|---|
| What is the greenhouse effect? | When the earths gases act like a greenhouse,letting heat in but preventing most of it from getting out |
| Give some examples of greenhouse gases | Carbon dioxide,methane, chlorofluorocarbons(CFC's) and nitrous oxide |
| Why is the greenhouse effect important? | It is important because without it temperatures on earth would be 30 degrees cooler than they are today. The earth would not be warm enough to support human life |
| What is global warming? | The rising of the earths temperature due to greenhouse effects |
| What are the causes of global warming? | Carbon dioxide,methane,chloroflurocarbons(CFC's) and nitrous oxide |
| How does carbon dioxide cause global warming? | Fossil fuels(such as coal,oil and natural gas) release carbon dioxide when they are burnt. Deforestation also contributes to the increase in carbon dioxide,trees absorb carbon dioxide and release oxygen. |
| How does methane cause global warming? | Cattle produce methane when they chew their food. Decaying organic matter in landfill sites also produce methane |
| How do chlorofluorocarbon's(CFC's) cause global warming? | CFC's are found in areosols cans and refrigerators. They are the most damaging of the greenhouse gases and are responsible for damaging the ozone layer |
| How does nitrous oxide cause global warming? | Nitrous oxide is found in the burning fuels for transport and power stations. Nitrates are used in fertilizers for farming |
| Who are the impacts of global warming? | Climate change:As the world gets warmer climates are changing,storms and hurricanes become more frequent and rainfall patterns change.The rise in sea levels:As global temperatures rise,ice caps melt,sea temperatures increase and the waters in them exapand |
| What are some solutions to global warming? | Official polices(Kyoto protocol 1997),clean and energy efficient appliences,reduce reuse and recycle and reduce deforestation |
Created by:
Chimozukee
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