What Era did early humans start
using pit houses?

1.who controls fascism government? 2.who controls communism gov? 3. how do they stay in power

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

Explain why the greeks might not have had a great influence on the world if they had better farmland?