The water table is the

A. aquifer.

B. upper boundary of the zone of saturation.

C. lower boundary of the zone of saturation.

D. zone of aeration.

Which country (or countries) has the "youngest" population, that is, the highest proportion of population under age 15? Which country (or countries) has the "oldest" population, that is, the highest proportion of population over age 64?

Explain global warming and its causes and effects.

What star in the milky way passes all five tests scientists require for it to be a candidate for extraterrestrial life?

What is the western most capital of the west

Explain how the Earth's surface can be organized into continents and oceans. Describe this way of organizing the earth in at least 2 to 3 sentences

Explain why scientists might use models to represent Earth's processes.

What is physical geology?

When prices and the quantity of goods produced are controlled by the government

The country crossed north to south by two parallel ranges of peaks is

What is the meaning of faulting in geography