Stone

**What are stones?** Stone is a natural material, at the 2500 A.c. the stone was used to construction of shelter.

I don’t know any kind of stone.
 * How many kinds of stone do you know? **

**What characteristics do stones have?** The stone are a strong material, so many stones have a texture raw. Also, the stone can be of many colors.

The stone are used in the construction because it is a strong material and resistant.
 * Why are stones used in construction? **

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