In Marvel comics, what imaginary rare metal is an important natural resource of Wakanda, the home country of Black Panther? kryptonite neptunium vibranium titanium

Why did some states believe they had the power to overturn federal laws?

Examine these two paintings that depict famous events from american history. the image on the left, painted in 1940, shows the signing of the u. s. constitution in 1787. the image on the right, painted in 1836, shows the american victory at the battle of yorktown in 1781.which of these paintings should be considered a secondary source?

What issue lead from texas seceding from the union