What is an estuary?

a. an area of fresh water teaming with life and nutrients

b. an area where ocean water mixes with stagnant water

c. an area where fresh water mixes with stagnant water

d. an area where ocean water mixes with fresh water

What is the smallest island in the world

A map that shows the layout of the roads in a city with no information about elevation is called what

Earthquakes and volcanoes are normally found near the interior of tectonic plates. a. True b. False

What makes Sweden an example of "market socialism"

Vhat river valley was settled by the early civilizations of India?

Why are the rivers so vital to europe's economy?

5x-4+21+90=180, what is it?

Which statement is NOT true of North Korea A. It is generally believed in North Korea possess nuclear weapons B. North Korea limits trade with each other continental neighbors, China and Russia C. Low-lying mountains cover its northern region D.

Why are oxygen concentrations in the deep waters of the North Atlantic higher than the concentrations found in the deep North Pacific?

By what year will 2/3 of the world's population lack access to clean drinking water?