He answer is true, hope this helps
The correct answer is d. Medical technology was used to treat malaria. Malaria was rampant in the tropical regions and the Europeans conquering these regions had challenges combating the disease. The colonists and locals had a form of treatment before identifying the cause of the disease. The isolated and used quinine to treat the illness.
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No more I deal, I'm here to learn
The earliest civilizations developed in the river valleys of: "A. the Nile River" and "D. the Tigris <span>and Euphrates Rivers" since these areas were the most fertile--meaning that crops were able to grow far more easily. </span>
