The greenhouse gas that is most significant as the cause of what ...

[yoooooman]

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

[Galvarado142]

Answer to Question 1

D

Answer to Question 2

True

[yoooooman]

Excellent

[dreamfighter72]

Thanks for the timely response, appreciate it