Чем отличаются агроэкосистемы доиндустриального и постиндустриального типов?

I try to be a good doughter ( son) but no matter how hard I try my parents never seem to be satisfied. They think I should eat healthier food, I should wear nicer clothes and I should get better marks at school. And according to them my hair should be shorter (longer) , my room should be neater and my friends should be more polite when they come to visit. It's isn't easy being a teenager.