Which american government agency was involved in trying to keep anti-communist governments in power?

Why might congress have had difficulty paying the war debt after the american revolution

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

What are some of the difficulties that the japanese face due to the islands' geography?