Answer:
Is that internal validity refers to the structure of a study and it's variables while external validity relates to how universal the results are.
Explanation:
Answer:
Across:
3 - Vernon
6 - Confederation
8 - Coin
9 - Rebellion
Down:
1 - Federal
2 - Slavery
4 - Franklin
I'm not sure of the other two
Answer:
When they die their tissues start to decompose leaving there hard bones and shells, usually when they die the body is naturally buried into the sea floor, lake floor, or wherever they are.