Which two statements indicate the reliability of a secondary source? focuses on information from only one primary source cites sources and presents information in an unbiased manner portrays strong personal opinions about a historical event expresses some positive opinions about a well-liked historical personality presents factual information in a clear and accurate manner

i'm not certain but i'm pretty sure it was spanish and portuguese america.

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.

the system of checks and balances is very important to the us constitution. it makes sure that all three branches of government have limited power. that they do not have too much power. with this system they can limit the amount of power that each one has. that way no branch becomes too powerful.

an example of this is how the executive branch can veto bills from the legislative branch but the legislative branch can still override that veto. the name checks and balances come from the power for one branch to check the   power of another branch to make sure that everything is balanced between all three.

i hope this