Environmental Science
The gas that shows the most variation from place to place and from time to time in the lower atmosphere:

Ozone (O3)
Argon (Ar)
Carbon dioxide (CO2)
Water vapour (H2O)
Methane (CH4)

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
A red shirt

Selectively scatters red wavelenghts of visible light and absorbs the rest
Selectively absorbs red wavelenghts of visible light and scatters the rest

ANSWER DOWNLOAD EXAMIANS APP