Morning The McCulloch v. Maryland Supreme Court case firmly established that

state governments can overrule the federal government.
the federal government cannot tax states.
state governments have the same amount of power as federal government.
the federal government has more power than state governments.

they are best described as reliable search engines.

it would be a. that is the only one i could think of

the two atomic bombs dropped on japan in 1945 killed and maimed hundreds of thousands of people, and their effects are still being felt today. the uranium bomb detonated over hiroshima on 6 august 1945 had an explosive yield equal to 15,000 tonnes of tnt.