Which statement best explains why early civilizations were located in large river valleys? A. Rivers contributed the resources needed for widespread agriculture to develop. B. River valleys provided the natural obstacles needed to protect against conquest. C. River valleys had the kind of temperate climate that humans are adapted to the best. D. Rivers made it easier for people to travel the long distances needed to trade with others.

A. Rivers contributed the resources needed for widespread agriculture to develop.

Explanation:

Rivers were very important for early civilizations. They provided the needed water to irrigate large crop plantations that led to the development of permantent settlements and cities.

They also made transport of goods easier, and they also made the soil more fertile, since they carried sediments along their routes.

in about winter like late november to january

d - failures.

the only attempted british colony in north america before 1600 was roanoke, virginia, which was a total failure. england claimed several areas, including newfoundland, but made no sustainable attempts to colonize them before 1600.