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 Mountains
The high areas of land are called
mountains and hills.

 Valleys Mountains

The low areas of land between the

hills and mountains are called valley.
The rivers flow through the valleys.

Valley

How should we treat our Earth?

 Plant more trees.
 Water the plants regulary.
 Say no to crackers and plas c bags.
 Reuse waste.
 Recycle as much as possible.

Key Words

Billion: A thousand million.
Sphere: A circle flatened at the top.
Cracker: Firecracker

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