............. is the introduction of harmful materials to the environment.
Pollution
An .................is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Desert, forest, oceans or jungles are different types of ..................
Ecosystem
The ................... is rising due to global warming.
sea level
This is the hole of the .............
ozone layer
This factory is emitting a lot of ..................
carbon dioxide
Wind energy is a .................
renewable energy
...................... is very important
Recycling
Due to ........................ ice caps are melting.
global warming
Carbon dioxide ............... make the hole in the ozone layer bigger
emissions
