End of Topic Test - Gases in the Atmosphere

Test yourself on End of Topic Test - Gases in the Atmosphere

• Which gas is present at 21% in the earth's atmosphere?

• Is the following statement true or false?
  
  "Greenhouse gases absorb the radiation from the sun directly."

• Is the following statement true or false?
  
  "Farm animals are a significant cause of greenhouse gas production."

• Which of the following does NOT decrease our carbon footprint?