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02
How to protect the earth?
The Earth
What is earth?
Movie
The Earth
71%
9%
29%
Know about the Earth
ocean
forest
land
Pollution
the Earth is dying
desert
rubbish
How to protect the Earth?
Don't litter
Save tree
Save energy
Save water
How can we protect the earth?
A
B
C
D
Listen read & answer
energy
coal