Answer:Muslim astronomers improved the astrolabe around 850 A.D. With the use of the astrolabe, Muslim geographers were able to calculate the size and circumference of the Earth. ... Muslim mathematicians created trigonometry because astronomers needed a way to calculate the distance from earth to objects in the sky.
Explanation:
"<span>So that as citizens we have more than two choices for public officials."</span>
The communist movement during the twentieth century had
departed from the Marxist theory was because of the occurrence where in there
was a largely agarian society leading the communist movement during the 20th
century to depart or separate from the Marxist theory.
