What was this ancient Chinese device used for? navigation
communication
papermaking
farming

Correct
A, or navigation

maybe you need to work on the pipes in the house. i am just saying this because you did not give any details.

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.

independent innovation during the abbasid caliphate