The correct answers are:
1) (A) He discovered white light was made up of the many different colors of the spectrum.
In fact, the physicist, astronomer, and mathematician Isaac Newton discovered in the 18th century that when the white light goes through a prism it disperses into different colors. Thus, he realized that white light was composed by the sum of all the colors of the spectrum.
1) (C) His theory of universal gravitation revolutionized astronomy.
The Universal Law of Gravitation was stated by Isaac Newton in his book Principia Mathematica, and it describes the gravitational interaction between different bodies with mass. It explained for the first time in History and in a precise mathematical way the motion of the Moon around the Earth, the motion of the Earth and other planets around the Sun, the tidal forces, the trajectory of comets, and the precession of the equinoxes, among other astronomical phenomena. Gravity is a fundamental force of nature that rules the universe and it was explained for the first time by Isaac Newton.
2) (B) He was a professor of mathematics at Cambridge university.
Isaac Newton was the second Lucassian Professor of Mathematics, a mathematics professorship, at the University of Cambridge.
2) (C) In his book,'Mathematical Principels of Natural Philosophy",Newton laid out three laws of motion that are still basis for studying how things move.
In the Principia Mathematica, Isaac Newton posited three laws of motion: first, that every object remains at rest or continues to move at a constant velocity, unless an external force pushes it (inertia); second, that force equals mass multiplied by acceleration; and finally, that every action in the universe produces a reaction equal in magnitude and opposed in direction.