Explain how connectivity has helped improve climate change

One of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

What would be the distance of all the planets to the sun in astronomical units?

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau