Which empire emerged in the nile river valley around 3500 b. c.e

How does a command economy differ from a mixed market economy? in a command economy, citizens have fewer property rights. in a mixed market economy, citizens have more property in a command economy, citizens have more property rights. in a mixed market economy, citizens have fewer property rights in a command economy citizens own all public property. in a mixed market economy, the government owns all private, property in a command economy, citizens own all private property in a mixed market economy, the goverment owns all public property

The physical processes that create most of earth's physical features, including mountains, are known as

What structure on the south african coast has a range of 63 km and releases flashes every 30 seconds?