Measuring Earth Test Review

Front

What is the approximate percent of oxygen by volume present in Earth's lower atmosphere?

Back

21%

Front

At which location will the highest altitude of the star Polaris be observed?

Back

Arctic Circle

Front

If contour lines are close together, then the slope is:

Back

steep

Front

What is the highest elevation on this map?

Back

Over 380 meters

Front

What provides the best evidence that the Earth has a spherical shape?

Back

Photographs of the Earth taken from space

Front

What is the primary gas in Earth's atmosphere?

Back

Nitrogen (approximately 78%)

Front

What is the significance of contour lines on a topographic map?

Back

They represent elevation and the shape of the terrain.

Front

What is the term for the angle between the horizon and an object in the sky?

Back

Altitude

Front

What is the main reason for the seasons on Earth?

Back

The tilt of Earth's axis as it orbits the Sun.

Front

What is the term for the imaginary line that divides the Earth into the Northern and Southern Hemispheres?

Back

Equator