Could someone give me a simple answer please? thank you How does refraction permit sound to be transmitted in the ocean for thousands of miles?

Yo! a girl out ! i will give brainliest! hu 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.

Based on the information in the graph, what can you conclude about humans in the world in general?

The blue segment below is a diameter of oo. what is the length of the radius of the circle?