Which source would a historian best understand the effect of the civil
war on soldiers' families?
o
a biography of a union general
a letter written home by a solider during a break in battle
a newspaper editorial on a soldier's return home
an oral history dictated by a soldier's adolescent son

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater

How did europeans and the introduction of european goods and ideas change native life ?

In what was the 1851 indian appropriations act considered a peace plan according to the federal government