HELP PLEASE I NEED THIS A. Sea-floor spreading
B. Mountain building
C. Sedimentation
D. Island building

Using complete sentences, explain the differences between a command economy and a market economy. what type of economic system is created when these two systems are combined? what are the benefits of combining these two systems?

In the diagram below, ab and bc are tangent to o. what is the measure of

Horizon a is also sometimes called a. topsoil b. subsoil c. bedrock d. weathered bedrock