Homes Around the World

This week I read Homes Around the World.
In this book a lot of home is explained from old home to current.

About 50000 years ago people lived in caves and then about 5000 years ago people started to build homes.These were different from what it is.Modern homes are made of man-made materials like concrete,bricks,plastic,and glass.
However,a lot of homes made of natural materials exist around the world.
For example,in hot deserts the temperature is very hot in the day and cold at night.People build houses with mud and grass because where there aren`t many trees or rocks.

I read this book and know many sort of homes all over the world.Rich people can live in wonderful house but it is difficult for poor people to live in anywhere.This is a serious issue because it obviously suggest difference of social.

To solve this problem people should help each other internationally I think.