Carbon dioxide, the main greenhouse gas in the atmosphere, comes from all of the following except ________.
A: growing plants
B: burning trees
C: burning fuels
D: breathing animals
A: growing plants
B: burning trees
C: burning fuels
D: breathing animals
举一反三
- Carbon dioxide ______ from burning fuels is the most common of the so-called greenhouse gases. A: producing B: having been produced C: to be produced D: produced
- Burning coal, oil and natural gas are ways to reduce carbon dioxide in the atmosphere.
- The most abundant greenhouse gas in the atmosphere is . A: nitrous oxide B: methane C: chlorofluorocarbons D: carbon dioxide
- Trees absorb carbon dioxide from the air, which can increase greenhouse gases.
- The concentration of carbon dioxide is caused by_______. A: the heat accumulated in the atmosphere B: the burning of coal C: the wide use of renewable energy D: the destruction of the tropical rain forest