What is the surface of the earth made up 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.

Which domain endings indicate websites that are most likely to be reliable sources? check all that apply. sites ending in .net

What do muslims believe a prophet is? a deity an angel a minister a messenger