The ruling in Gibbons v. Ogden was important because it -gave states broad power over the federal government.
-declared the federal government’s power over the states in the case of interstate commerce.
-found a federal law unconstitutional.

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.

ok i will try

explanation: