the three postive effect are that they could use coal to heat their homes ,eat better food and wear better clothing the three negative effect where they had to move to cities which were crowed and...
One: Yummy Sushi Two: Yummy cooked mollusk Three: Yummy things that eat mollusk like maybe....Seagulls....They taste good.I hope I've helped :)
The sun gives light so you can see, gives heat so you can live, gives gravity so the earth does not go flying off into the cold space.
Well, a main one is obviously that it waters the crops so that people don't have to.