A: people staying indoors
B: people in poor health
C: the earth's vegetation
D: the earth's temperature
举一反三
- Why is more earth's heat blocked from escaping with more carbon dioxide in the atmosphere A: Carbon dioxide prevents the sun's energy from going back into space. B: Carbon dioxide radiates the sun's energy onto the earth. C: Carbon dioxide produces more heat in the atmosphere. D: Carbon dioxide takes in the sun's energy at infra-red wavelengths.
- What will the newly-launched observation satellite do? A: It will record carbon dioxide emissions and absorption worldwide. B: It will identify carbon dioxide emission sources with higher efficiency. C: It will monitor carbon dioxide levels in Earth’s atmosphere. D: All of the above.
- The purpose of Earth Day is ______. A: to help people memorize the earth B: to help people to learn how to protect the earth C: to unite all the people on the earth D: all of the above
- Magellan’s voyage ______ some people’s belief that the earth was round. A: shortened B: attacked C: removed D: proved
- 17e44787ba63461.png1. If the earth's temperature rises, it will be a disaster for all_______________.
内容
- 0
Please identify the cause in each of the following situation. In recent decades, many people have poured into the cities and the cities have grown so large that now about 50% of the Earth's population lives in urban areas. A: The cities have grown so large. B: Many people have poured into the cities. C: Now about 50% of the Earth's population lives in urban areas. D: None of them.
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Magellan’s voyage ______ some people’s belief that the<br/>earth was round. A: shortened B: attacked C: removed D: proved
- 2
On which year's Earth Day, we celebrate people's ingenuity A: 1970 B: 2020 C: 2018 D: 2008
- 3
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
- 4
If they live in a cave dwelling, there are many trace elements in the yellow earth that are good for people's health.