The greatest contribution iron ships made to industrialization is?

The enforcement clause of the fourteenth amendment states what congress had the authority to a. grant citizenship to people b. change the constitution c. enforce only the bill of rights d. make laws to apply the amendment

Which kind of map you would be used to show population density in the countries of the world

What happened in the tinker v des monies? and why is it important what happened in the hazlewood v. kuhlmeier? why is it important?