They used mirrors i believe
Answer: Settlers needed water for immigration and mining because most of the land is dessert.
Answer:Islamic thinkers made great advances in medicine. They also translated Greek and classical texts into Arabic. They built libraries for scholarship and to preserve great texts. They made great advances in the study of astronomy, and they produced great works of art using such Islamic ideas as the arabesque and calligraphy
Answer:
The doctrine of implied powers of the federal Constitution.
Explanation:
Hope this helps :D
Abraham Lincoln because he helped a lot of slaves worldwide
