NEW
Font size
WorksheetsGreenhouse effect
Total questions: 10
Worksheet time: 3mins
1. How do plants affect carbon dioxide levels in the atmosphere?
a) They reduce them
b) They increase them
c) They make no difference
2. Which countries are the largest producers of carbon dioxide?
a) USA
b) China
c) USA and China
3. What is solar radiation?
a) Energy from the sun
b) Energy from within the Earth
c) Energy from the wind
4. What do chlorofluorocarbons (CFCs) do?
a) Create more carbon dioxide
b) Destroy ozone
c) Create more oxygen
5. Where do CFCs come from?
a) Burning fossil fuels
b) Deforestation
c) Aerosols and fridges
6. How could global warming affect polar regions?
a) It will make them warmer
b) It will make them colder
c) It won't affect them
7 . It is believed that the burning of fossil fuels causes a build-up of gases in the world's atmosphere called:
a) Atmospheric temperature
b) Greenhouse gases
c) Global warming
8. Scientists argue that the concentration of greenhouse gases in the atmosphere is:
a) Gradually increasing
b) Gradually decreasing.
c) Rapidly increasing.
9. Which of the following gases are greenhouse gases?
a) Carbon dioxide and methane
b) Carbon dioxide and oxygen
c) Methane and nitrogen
10. Which of the following statements is NOT a possible result of global warming?
a) Increased acidic levels in rainfall
b) Increased occurrence of flooding
c) The melting of the world's ice cover
