.... pollution
Noise pollution
What do those people do?
Volunteer
... pollution
Land pollution
What is it?
Endangered species
Its example of ...
Reuse
What is it?
Reuse
How to save the Earth?
Plant trees
... pollution
Air pollution
Save ....!
Save electricity!
What is it?
Recycle
... water!
Save water!
How to save teh Earth?
Use less plastic!
What is it?
Global warming
What is it ?
Overpopulation
What is it?
Deforestation
.... pollution
Water pollution