Author Question: The greenhouse gas that is most significant as the cause of what scientists have labeled global ... (Read 60 times)

yoooooman · **on:** Aug 7, 2018

The greenhouse gas that is most significant as the cause of what scientists have labeled global warming is:
a. nitrogen dioxide.
b. hydrogen peroxide.
c. ferrous oxide.
d. carbon dioxide.

Question 2

The high pressure over the North Pole weakens during the summer.
a. True
b. False
Indicate whether the statement is true or false