Why is some kind of supremacy clause needed in a federal system? ?

Explain how nationalism led to independence in nigeria.

This chart shows the number of soldiers killed according to two different sources. source a is a book written by university professors. source b is from a well-known historical website. in a paragraph, explain why the data presented is different, and evaluate the reliability of each source. which should be used in a school research project, and why?

Ball is tossed up in the air at its peak, it stops before beginning to fall.the ball at its peak has