You didn't provide any reasons so it's hard to pick a specific answer. However, the reason why the colonists were extremely angry with Great Britain were the imposing of all these unnecessary taxes. There was the Tea Act, the Stamp Act, etc. All of these taxes were what drove the colonists crazy.
Because the colonists were throwing snowballs towards the soldiers and yelling things. while one of them tripped and accedently fired. while the other soldiers fired out of fear there was a ambush
The first scientist to challenge the concept of race was Franz Boas.
