Answer:
c
Explanation:
smog is smog because of the air pollution
Cultural diffusion is the spread of cultural trends across locations. Beliefs, practices, and ideas get shared from person to person, and sometimes even around the world through this diffusion, as happens with viral videos. Many cultural practices are spread by a type of cultural diffusion called expansion diffusion.
The factors that contributed to the environmental problems which exist in Europe was that B. Much of Europe is densely populated.
Jupiter, Saturn, Uranus, or Neptune fit that description, so pick anyone!
