Author Question: Before the Industrial Revolution, humans increased the amount of product derived from one unit of ... (Read 172 times)

cookcarl · **on:** Jul 10, 2018

Before the Industrial Revolution, humans increased the amount of product derived from one unit of land and labor by

A) the use of hydraulic pumps.
B) the use of windmills to grind grain.
C) the use of sails to power ocean going ships.
D) developing new crop varieties.
E) all of the above.

Question 2

Lewis Henry Morgan defined the stages of unilineal cultural evolution according to level of technology.

Indicate whether the statement is true or false