Which statement best describes the united states

a. it has a socialistic economic system

b. it is a constitutional monarchy

c. it is a confederation

d. it is a democracy and a federation

ANSWER:

It is a "democracy and a federation" is the best statement that would describe the US.

EXPLANATION:

Democracy is known as a system in which the people selects a reasonable candidate to run the country. The nation is managed by three types of democracy namely parliamentary, presidential and mixed.Federation is defined as a process of creating a state or a huge organization into a single group in which the control is done from a common point.

Answer volcanic eruptionsseismic waves from earthquakes;

Your answer is d. silli hope this ! : ) i left an explanation down below if you need it: a sill forms when hot magma squeezes between layers of rock to form a hardened sheet of rock. a sill is basically a tabular sheet intrusion between old layers of sedimentary rock, volcanic beds, or in the direction of foliation inherent in metamorphic rock. the word sill means a concordant intrusive sheet.