Why does the earth become cool?
A: Because the sun gives the heat to the earth.
B: Because the moon gives the wind to the earth.
C: Because the earth rotates .
D: Because the sun's heat bounces to the space.
A: Because the sun gives the heat to the earth.
B: Because the moon gives the wind to the earth.
C: Because the earth rotates .
D: Because the sun's heat bounces to the space.
举一反三
- Animals and plants can live on the earth because ________. A: it is the right distance from the sun B: it has plenty of water C: the sun gives them warmth and light D: all of the above
- 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.
- The earth _______ round the sun, and the moon _________ round the earth
- When the sun's rays hit the earth, a lot of heat is __________ back into space. A: considered B: impressed C: eflected D: affected
- Small green plants are very important to dry places because ______. A: they don't let the sun make the earth even drier B: they don't let the wind blow the earth away C: all of the above