Cities can become segregated when older areas decline and wealthy citizens flee decaying neighborhoods. Please select the best answer from the choices provided.
OT
OF

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.

5. what is a red giant? can our sun become a red giant? why or why not?

How can minerals crystallize from materials dissolved in water? check all that apply.