What distinguishes first class levers from both second and third class levers? a. the fulcrum is between the load and effort. b. there is a fulcrum on both sides of the load. c. greater effort is required to move the load. d. the first class lever is not found in the human body. select the best answer from the choices provided.

new ideas form the base for the growth of the people.each time they try to develop, they may discover a new form or abilities of themselves this makes the people satisfied in living their life in a happy way.this makes sense that new ideas of people cn change their live.the ideas, if bring their best, they will be changing their present state.