1 different cultures,languages,food,social systems,etc.
2 No,I don't.Rich people also want to live a simple life.
3 Digital life is not as tangible as real life.
4 truth of something
5 Because women and men are equal.They can do 95% of things that men do.
6 Get started from each tiny thing,for example:don't throw anything on the ground;don't use plastic bags while buying something.
7 one night I dreamed I fell down to a deep stiff.I was so horrified that i awoke up.Then I found I was on the floor!