Economic systems differ according to which two main characteristics? A. Who owns the factors of production, and the methods used to coordinate economic activity. B. The technology used in production, and the quantity and quality of natural resources. C. How goods are produced, and who gets them. D. The political system in place, and the degree of scarcity facing the economy

A. Who owns the factors of production, and the methods used to coordinate economic activity.    

Explanation:

Economic systems differ according to two main characteristics which are; who owns the factors of production, and the methods used to coordinate economic activity. There is the command economy in which the factors of production and methods used to coordinate economic activities are controlled by government and there is the market system in which resources are controlled by private individuals.

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.