Every gallon of gas you save not only helps your budget, but also keeps a certain amount of carbon dioxide out of the atmosphere. The chinese meaning of the word underlined in the sentence is .
举一反三
- Burning coal, oil and natural gas are ways to reduce carbon dioxide in the atmosphere.
- The gas with maximum percentage in the atmosphere is ( ). A: nitrogen B: hydrogen C: oxygen D: carbon dioxide
- It is pretty well understood _______ controls the flow of carbon dioxide in and out of the atmosphere today.
- The most abundant greenhouse gas in the atmosphere is . A: nitrous oxide B: methane C: chlorofluorocarbons D: carbon dioxide
- 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.