How old do scientists think the world is rough?

In japan, the is the head of state and the is the head of government.who ever answer will get

What were the three outstanding events in 1619 that had a great influence on the colonies? representative government came to america. the first slaves were brought to america. the first governor was elected. the london company sent women to america. john rolfe developed a money crop-tobacco. next question ask for

In keeping their culture unchanged what do canadians fear the most?