Workers mostly sell their labor in order to "<span>a. earn income" since those who employ them must pay them a wage, which they can use to buy food, recourses, etc. for themselves and their families. </span>
        
                    
             
        
        
        
Both were very involved in the war.
        
             
        
        
        
It was much smaller, and therefore lacked a bunding charter. Hope this helps!
        
             
        
        
        
Answer:
He argued that mathematics could be used to measure and describe all motion in the universe.
Explanation:
Newton developed a mathematical model that explained, measured and described motion. He developed calculus to prove it, but he published it in a more classical mathematical way because calculus was little understood in his time. 
Newton's laws of motion and his formulation of gravity were a breakthrough at the time. The mathematical model allowed other scientist and engineers to precisely calculate and predict motion, heat, the orbits of the planets, etc.