The Trojan War was won by the Greeks after a 10-year long battle. The decisive turn in the war was the charge led by Odysseus from the Trojan Horse.
Answer:
She explains to him that he has an upper hand in the situation (knowing that Jack was saying bad things about him). She then tells him that if he refuses to go back to school on his own, she'll tell their parents who will tell the school principle and that everyone will start treating him like a freak that needs to go to a special needs school. That is ultimately what makes up his mind to go back.
I believe its the last one: 95% of the surface of Antarctica, which contains 70% of Earths freshwater supply, is covered by ice.