<em>Baruch S. Blumberg invented </em><span><em>a vaccine for smallpox for which he won noble prize in 1976.</em></span>
D. The Grand canyon's layers get older from bottom to top
The deeper you go, the older the layer
Answer:
because of the Donor and Warafanau
The rebellion affirmed the need for a stronger federal government, and eventually led to the creation and ratification of the US Constitution and The Bill of Rights
