The following items determine whether a good a service has elastive demand:
C. Availability of substitutes for a good or service
A. If the good is a necessity of luxury.
It guaranteed the rights of individuals against the wishes of the King.
Answer:
He helped created modern astronomy.
Explanation:
In early 1610, he made the first in a remarkable series of discoveries. While the scientific doctrine of the day held that space was perfect, unchanging environments created by God, Galileo's telescope helped change that view. He used the telescope to revolutionise astronomy which had relied for millennia on observations and measurements made with the naked eye.