Definition: a command economy is where a central government makes all economic decisions. the government or a collective owns the land and the means of production. it doesn't rely on the laws of supply and demand that operate in a market economy. a command economy also ignores the customs that guide a traditional economy. in recent years, many of these centrally-planned economies have added aspects of the market economy.

The text compares alternating current with direct current. how are they different? a alternating current reverses direction in the electrical wiring. direct current flows in one direction only. b direct current reverses direction in the electrical wiring. alternating current flows in one direction only. c direct current is powered by solar energy. alternating current is powered by electrical energy. d alternating current does not move in the electrical wiring. direct current does move in the electrical wiring.