单项选择题

Which of the following is NOT the exact effect of aerosol layer

A．It may reflect heat coming from the sun.
B．It facilitates the balance of heat on the Earth.
C．It would start another ice age.
D．It accelerates the loss of heat on the surface of the planet.
<上一题 目录 下一题>
热门 试题

单项选择题
What can be inferred from the passage
A．Environment pollution has manifested alarming threat for human survival.
B．The chance for human beings to rescue the planet is very slim.
C．Compared with aerosols, carbon dioxide is far less threatening to human beings.
D．The gloomy forecast cannot hold water if the aerosol layer is eliminated.
单项选择题
What is endangering our planet more urgently according to the passage
A．The amount of carbon dioxide increases in the atmosphere.
B．The temperature increases due to the liberation of carbon dioxide.
C．The planet is becoming hot because of the collection of aerosols.
D．The formation of aerosols causes the Earth to cool down.
相关试题