Answer: Any major environmental change, such as deforestation, flooding or droughts due to a river changing course, could have had disastrous effects on Harappan society, such as crop failures, starvation, and disease.
Answer:
By the 15th century the African continent was already one of great of diversity. In many part of the continent no major centralised states existed and many people lived in societies where there were no great divisions of wealth and power.
Pompeii was known from early historical times from the writing of Pliny the Younger, an eye witness to the eruption. Although there was some knowledge of the site from 1599 its magnitude was better understood from 1748.
Answer: C
Explanation: I have already taken this test.