2. They were in time to produce nitrogen and other gases,____________ were to make the earth’s atmosphere.
举一反三
- Greenhouse gases trap energy in the atmosphere and make the Earth warmer.
- what the analogy is: which two things are being compared?The earth’s atmosphere is like a blanket of gases around the earth. It is only a thin layer but it helps to maintain the temperature of the earth, keeping us warm. It also offers a layer of protection from the intensity of the sun. A: earth’s atmosphere and a blanket B: earth’s atmosphere and gases C: earth’s atmosphere and a layer of protection D: earth’s atmosphere and a blanket of gases
- As we have learned, these greenhouse gases energy in the atmosphere and make the Earth warmer.
- A variety of gases trapped in the Earth’s atmosphere can ensure life on Earth because they are ______.
- Greenhouse gases are necessary to life because they trap energy in the atmosphere and make the Earth warmer.