The gas that shows the most variation from place to place and from time to time in the lower atmosphere:
A
Ozone (O<sub>3</sub>)
B
Carbon dioxide (CO<sub>2</sub>)
C
Water vapour (H<sub>2</sub>O)
D
Methane (CH<sub>4</sub>)
E
Argon (Ar)
Correct Answer: Water vapour (H<sub>2</sub>O)
The gas that shows the most variation from place to place and from time to time in the lower atmosphere Water vapour (H2O).