Briefly describe dual federalism. when was it in effect and how long did it last?

Dual federalism is when the powers and responsibilities of the federal and state governments are distinctly separated. The United States experienced such a political system in the period from 1789 to 1901. During this period, there was little collaboration between the state and national government.

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.

protectionism fosters competition and keeps price regulated is not an argument in favor of protectionism.