This question is about greenhouse gases.
Carbon dioxide is one example of a greenhouse gas.
Name two other greenhouse gases.
Which human activities contribute to increased levels of carbon dioxide in the atmosphere?
Tick (✓) two boxes.
 Farming |  |
 Burning fossil fuels |  |
 Deforestation |  |
 Sending rubbish to landfill |  |
 Cracking hydrocarbons |  |
Greenhouse gases contribute towards the greenhouse effect.
Put the following stages of the greenhouse effect in the correct order below.Â
A Â It is reflected by the Earth as long wavelength radiationÂ
B Â Some of the radiation is absorbed by greenhouse gasesÂ
CÂ Â Short wavelength radiation is emitted by the sun
DÂ Â The radiation passes through the atmosphereÂ
Â
Order: | _____ |
 | _____ |
 | _____ |
 | _____ |
Give one way that carbon dioxide emissions could be reduced.
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