Which describe isaac newton's accomplishments? choose all answers that are correct.
a. discovered that white light is made up of the many different colors of the spectrum
b. wrote mathematical principles of natural philosophy
c. was the originator of the expression, "knowledge is power"
d. often called the father of modern mathematics because of his coordinate system

Plz which of the following statements is the best definition of a blockade? a. a blockade is a group of soldiers recruited from a foreign country who serve for the money. b. a block it is a military tactic in which one army moves into place to face another army. c. a blockade is a wooden fence built to defend a colonial settlement. d. blockage is the shutting off of a port by ships to keep people or supplies from moving in or out.