1. Why do you think some of the city-states fought with each other?

Because

Explanation:

They fought for fertile land to farm, some land had resources they needed. Maybe they had a surplus of resources other city states needed ans would not trade. Hope this helped

i believe

clean air is essential for health and survival

clean air provides nitrogen gas for plant respiration

clean air supplies oxygen that enables living organisms to breathe

hope this

i am brianly

sorry if this doesn't

answer; curiosity;