A.Only a small portion of the atmosphere consists of carbon dioxide. |
B.Professor Bolin’s predictions were taken seriously in the first place. |
C.No changes in climate will become noticeable for 50 years or more. |
D.The rise in temperature will probably be 2 degrees in every part of the world. |
A.Carbon dioxide is produced when we breathe. |
B.Carbon dioxide is produced when we burn things. |
C.More forests are destroyed and more fossil fuels are burned. |
D.The global temperature keeps rising. |
A.play | B.move |
C.manage | D.function |