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.
I think it is d. Persian empire but I could be wrong :/
Answer: this is on edge right
Explanation:
Here is the excerpt from A Rumor of War which best illustrates Vietnam's uncomfortable climate:
<span><em>The tedium was occasionally relieved by a large-scale search-and-destroy operation, but the exhilaration of riding the lead helicopter into a landing zone was usually followed by more of the same hot walking, with the mud sucking at our boots and the sun thudding against our helmets while an invisible enemy shot at us from distant tree lines.</em></span>
Answer:
Harsh discipline from management, low pay, and lack of job security.