The population of the United States is approximately.

A. 900 million

B. 300 million

C. 500 million

D. 1.3 billion

Salinity increases in the ocean around antarctica when a. evaporation decreases. b. sea ice forms. c. temperatures increase. d. sea ice melts.

Which of the following choices is not one of the four basic elements contributing to the economic development of a country? A. Natural resources B. Language C. Human resources D. Technology

A sedimentary rock made up of rock fragments with rounded edges is called

What bay is located east of washington dc?

What is the moon use

Sheep were used by the early colonists mainly for their: a. meat c. wool b. milk d. skin

Why Yugoslavia not a nation state?

Which of the four trails is the steepest geology 110?

Ecological research that predicts the environmental effects of a proposed course of action is called

Scientists began thinking differently about the continents when