Decline of Sumer:
Poor irrigation reduced agricultural yields.
Population moved.
Elamite invasion.
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The Aztec's complex civilization was destroyed by the Spanish conquistadors
Answer:
The Correct Answer is B
Explanation:
Medicine was a central part of medieval Islamic culture. Responding to circumstances of time and place/location, Islamic physicians and scholars developed a large and complex medical literature exploring, analyzing, and synthesizing the theory and practice of medicine. Islamic medicine was initially built on tradition, chiefly the theoretical and practical knowledge developed in Arabia and was known at Muhammad's time, ancient Hellenistic medicine such as Unani, ancient Indian medicine such as Ayurveda, and the ancient Iranian Medicine of the Academy of Gundishapur. The works of ancient Greek and Roman physicians Hippocrates, Galen and Dioscorides also had a lasting impact on Islamic medicine. Ophthalmology has been described as the most successful branch of medicine researched at the time, with the works of Ibn al-Haytham remaining an authority in the field until early modern times.
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