The author __________ A. believe that man is causing global warming. B. believes that global warming is a natural process. C. is sure what the causes of global warming are. D. does not say wh
The author __________
A. believe that man is causing global warming.
B. believes that global warming is a natural process.
C. is sure what the causes of global warming are.
D. does not say what he believes the causes of global warming are.