Unit 8 Review

If contour lines are close together, then the slope is

• gentle
• steep
• flat
• going up and down

What do each of the contour lines on a topographic map represent?

• Elevation

• Elevation Change

• Boundaries

• Rivers & Streams

What is the elevation change from A to B?

• 600 feet

• 500 feet

• 547 feet

• 447 feet

How can water change the appearance of a topographic map?

• Water doesn’t have an impact

• The flow of water are represented by the lines on a topographic map

• Water can fill up in all the circles on the map

• Water can weather and erode away soil and rock

What is the elevation at Position A?

• 1600

• 1500

• 20

• 240

What was Wegener's hypothesis called?

• The Theory of Pangea 

• The Theory of Moving Continents

• The Theory of Continental Drift

• The Theory of Techtonic Plates

Most geologists think that the movement of Earth's tectonic plates is caused by

• the rotation of the Earth.

• the Earth's magnetic field.

• subduction.

• convection currents.

Subduction means.....

• one plate goes under another plate

• two plates slide past each other

• two plate collide and form folded mountains

Sea-floor spreading explains how.....

• new crust is created at a divergent boundary

• volcanoes are formed on continents

• deep sea trenches are formed

This is a fault. What type of boundary do faults occur at?

• Convergent

• Divergent

• Transform

• None