How did aqueducts and sewer systems help expand the Roman Empire?

by enabling the Romans to rely on solar power
by providing technology from Germany
by providing fresh water and proper sanitation
by enabling the Romans to purify salt water

One of the main problems with the indian reservation system was that government agents took land from settlers to give to american indians. dealt dishonestly with american indian families. did not understand the power structure of american indian tribes. gave land to settlers who removed american indians.

What was a common consequence if sir edwin sandys system of indentured servitude

The supreme court serves what important function in the u.s. federalgovernment?