During the industrial revolution, instead of being the primary source of wealth, capital took over that position.
a. slaves
b. land
c. mercantilism
d. serfs

that is probably something for you to answer

germany

explanation:

a rocket engine utilizes collected rocket explosive mass for producing its high-speed propulsive jet. rocket engines are effect engines, achieving thrust in accordance with newton's third law. maximum rocket engines use flaming, although non-combusting methods (such as cold gas thrusters) also exist.