Lever<span>, simple machine consisting of a rigid bar that rotates about a fixed point, called a fulcrum. </span>Levers<span> affect the effort, or force, needed to </span>do<span> a certain amount of work, and are used to lift heavy objects.</span>
Answer:
Check attachment
Explanation:
Read the footnote on the attached screenshot
Answer:i think it’s A or C, they seem the most relevant
Explanation:
In the 1300s Europe's population was 75 million. Due to pledge it dropped to 50 million!