Which of the following statements are true?

A Simple machines use electricty

B Simple machines are made from only one part

C Compound machines are made from two or more simple machines

D Compound machines make the job harder

Answer:c

C-) Compound machines are made from two or more simple machines

Explanation:

Simple machines use the principle of Lever, where a force multiplied by a distance is used. That is why a simple machine does not produce electricity. Simple machines must be composed of at least two parts. For this reason the combination of simple machines results in a compound machine.