An area of land that is covered with a shallow layer of water during some or all of the year is called a(n)

You could say the relative location of washington, d.c.

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?