What are the three theories of agriculture

Brainliestttme : )why was the launch of sputnik in 1957 important? -most in the u.s. had not thought the soviets were capable of producing satellite technology.- it made clear that the u.s. space program was dominant.- most in the soviet union had not thought the u.s. was capable of launching manned aircraft. -it established the fact that a more dangerous hydrogen bomb could be created.

Ahistorian who compares the expansion of political systems to the expansion of economic systems is organizing history by

What type of monarch was fredrick the great ?