What are three technologies that have allowed humans to survive and thrive in the nile river valley.

What do the discoveries of shells used in jewelry and a huge dredged canal tell us about the indus valley civilization?

Tori is researching for her blog post about how wearing sunblock can prevent skin cancer, and she finds a page about her topic on the united states centers for disease control website at is this a reliable site for tori’s research? yes, because it is presented by a college or university no, because it is a personal opinion about the subject yes, because it is run by a governmental organization no, because it is intended to advertise a certain product

Number these events in the order in which they occurred. union forces retreated. union forces launched a surprise attack. more confederate troops arrived by train.