He studied the fossils' age and how tall the mountains are. He also studied how old they are. I don't know about Coal Beds but he also used balloons to find out the continents were once a big supercontinent called Pangaea and they apparantly drifted apart
The correct answer is B. Susan B. Anthony was an American social rights reformer and political activist, involved especially in the Women's Rights Movement. She also played a big role in the Women's Suffrage Movement.
The answer to the question is d
The amendment process best shows the concept of federalism because D. it requires involvement by both the national and State levels of government.
Prohibition was hard to enforce because citizens always found a way around prohibitions rules, such as bootlegging and smuggling alcohol from canada
