True because machines are a replacement that doesn't need a salary like a person would
Answer:
By using the scientific method
Explanation:
observation.....hypothesis......experiment.....and finally a conclusion
Although I don't know for sure what is an epicycle, I think your answer is right and I would try to explain as apliable to solar systems on the Milky Way known through astronomical discoveries, conside ring just one star called "Sun" and a few distant planets describing a certain type of movement around it. I should add that the Moon describes the same type of movement around the Earth ( which is not a star), being the only natural satelite of the planet Earth, being kept around it by the circumstances created by the proportion of forces occured while moving
C. is the answer because there us mutualism between both species.
