The predominant gas in the Earth's atmosphere is

a.

Helium

b.

Oxygen

c.

Methane

d.

Water vapor

e.

Nitrogen

Which of the following is the greatest factor that determines climate in any given location? landscape ocean currents latitude wind patterns

Why can't contour lines cross

How can prehistoric sites have geographic 'place'? A. Prehistoric sites have no people, so they can't have 'place' B. Things found at prehistoric sites have characteristics that make a prehistoric 'place'. C.

1. downwelling large, rotating current loops caused by the Coriolis effect 2. gyre downward movement of surface ocean water caused by wind 3. thermohaline circulation upward movement of deeper, colder ocean water to the surface caused by wind 4.

Although loess soils and sediments cover about 1/10 of the earth, approximate what percentage of Europe contains loess? 1/2 1/3 1/4 1/5

The diameter of a circle is 5.5m. Find the area of the circle. Give the exact value

Which of the following clouds has the highest base? a. stratocumulus b. cirrocumulus c. altocumulus d. nimbostratus

What kind of map will show you where communist governments are located in the world?

Russia is located in a ___ biome

Education spread widely during the enlightenment because