Which type of work was the main occupation during the Xia dynasty?
A jade works
B. fishing
C. agriculture
D. selling of pottery

In a command economy, people are not free toa buy consumer goods.b work in factories.c make production or monetary choices.d receive an education.

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

Which statement best explains the role of government according to thomas hobbes