1. I'm pretty sure that it's more than one answer. According to Newton's biography, the most suitable statements are: <span>• he invented a new branch of mathematics called geometry. it could be used to calculate the speed. </span><span>• his theory of universal gravitational revolutionized astronomy.
2. As far as I remember, the most accurate statement about Newton's achievements is: </span><span>• in his book, Mathematical principles of Natural Philosophy, Newton laid out three laws of motion that are still the basis for studying how things move.</span>
