A: are beneficial for plant growth
B: let sunlight enter the atmosphere but slow the loss of heat from the Earth's surface
C: make up the majority of gases in the atmosphere
D: none of the above
举一反三
- Greenhouse gases are necessary to life because they trap energy in the atmosphere and make the Earth warmer.
- 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.
- Without greenhouse gases, the heat radiated from the Earth's surface<br/>would____. A: remain where it is B: warm up the Earth C: escape to space
- We should reduce the amount of greenhouse gases because it trap ______ in the atmosphere and makes the earth _______.
内容
- 0
The method in which the greenhouse effect takes place is by A: gamma radiation from the earth is absorbed into the atmosphere by particulates B: beta radiation from the Sun is absorbed by water vapor C: ultraviolet radiation from the Sun is absorbed by ozone D: infrared radiation from the Earth's surface is absorbed by multiple gases in the atmosphere E: cosmic radiation from deep space is absorbed by gases in the atmosphere
- 1
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
- 2
A variety of gases trapped in the Earth’s atmosphere can ensure life on Earth because they are ______.
- 3
___________ as certain gases in the atmosphere trap energy is called greenhouse effect.
- 4
Which of the following refers to the retention of the Sun's warmth in the Earth's lower atmosphere by greenhouse gases?