Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Our greener world
0
%
0
0
0
Back
Restart
WHAT CAUSES AIR POLLUTION?
Oops!
Okay!
What is this?
The earth
Oops!
Okay!
Human are _____ the environment.
Destroying
Oops!
Okay!
What pollution is this?
Air pollution
Oops!
Okay!
What pollution is this?
Water pollution
Oops!
Okay!
What pollution is this?
Soil pollution
Oops!
Okay!
What is this?
Emission
Oops!
Okay!
What pollution is this?
Deforestation
Oops!
Okay!
Oil, coal, gas, water,.. are
natural resources
Oops!
Okay!
What pollution is this?
Noise pollution
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies