How long did the nuremberg trails last?

Iwill be giving 15 points to whoever answers the concept of checks and balances means that each branch of governmenta. has its own powers and responsibilitiesb. is clearly described in articles of the constitutionc. has the ability to correct the other branches in case of an errord. is set up so that in case of constitutional crisis, the governement will continue to operate

Approximately how many americans, from both the north and the south, were killed in battle during the civil war?

Can someone me write a paragraph on this topic i feel confused