Cause: Italians wanted to improve their knowledge of people and the world. but idk the effect

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

What are new social classes emerged due to advancement in agriculture ?

Which is not a characteristic of capitalism? 1. market economy 2. supply and demand 3. freedom of competition 4. classless society