Greenhouse gases

According to scientists, the average temperature of Earth would drop from 14˚C (57˚F) to as low as –18˚C (–0.4˚F), without the greenhouse effect.
True
False
Methane is released naturally from decomposition.
True
False
Most of the CO2 that people put into the atmosphere comes from breathing.
True
False
People add methane to the atmosphere through livestock farming, landfills, and fossil fuel production such as coal mining and natural gas processing.
True
False
Nitrous oxide comes from industries..
True
False
As the level of these gases rises, so does the temperature of Earth.
True
False
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