What is a black hole?​

In which type of economy do the forces of supply and demand typically drive prices? a. a market economy b. a traditional economy a planned economy d. a command economy select the best answer from the choices provided. 0 0 em oo 0 0

The layers of earth are based on what two sets of characteristics?

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."