Respuesta :
Answer: A. More carbon dioxide is emitted in the United States than any other greenhouse gas
Carbon dioxide, methane, nitrous oxide, and water vapor are the principal greenhouse gases, as are fluorinated gases, as explained further.
What are the four primary sources of greenhouse gas emissions?
Carbon dioxide, methane, nitrous oxide, and water vapor (all of which exist naturally) are the principal greenhouse gases, as are fluorinated gases (which are synthetic). Greenhouse gases have various chemical characteristics and are eliminated from the atmosphere through various processes over time.
Option A. The United States emits more carbon dioxide than any other greenhouse gas.
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