carbon dioxide
举一反三
- Why is more earth's heat blocked from escaping with more carbon dioxide in the atmosphere A: Carbon dioxide prevents the sun's energy from going back into space. B: Carbon dioxide radiates the sun's energy onto the earth. C: Carbon dioxide produces more heat in the atmosphere. D: Carbon dioxide takes in the sun's energy at infra-red wavelengths.
- Carbon dioxide is greenhouse gas.
- What will the newly-launched observation satellite do? A: It will record carbon dioxide emissions and absorption worldwide. B: It will identify carbon dioxide emission sources with higher efficiency. C: It will monitor carbon dioxide levels in Earth’s atmosphere. D: All of the above.
- Plants ___________ carbon dioxide from the air.
- The synonym of CO2 is .（ ）。 A: hydrogen B: carbon monoxide C: carbon dioxide D: oxygen