中国大学MOOC: The greenhouse gases in the atmosphere of earth contains .(List 3 kinds)
举一反三
- Greenhouse gases trap energy in the atmosphere and make the Earth warmer.
- As we have learned, these greenhouse gases energy in the atmosphere and make the Earth warmer.
- We should reduce the amount of greenhouse gases because it trap ______ in the atmosphere and makes the earth _______.
- Greenhouse gases are necessary to life because they trap energy in the atmosphere and make the Earth warmer.
- The greenhouse gases in the atmosphere of earth do not contain ( ) 未知类型：{'options': ['', '', '', ''], 'type': 102}