Unit 2: Lesson 1, 2, 3, 4 & 5 Review

What evidence did Alfred Wegener use to support his continental drift hypothesis?

• a) Earthquakes and volcanoes

• b) Matching coastlines of continents

• c) The movement of tectonic plates

• d) The presence of deep ocean trenches

Which of the following best explains why the continents move?

• a) Wind pushes the continents
  

• b) Gravity pulls the continents together
  

• c) Seafloor spreading and convection currents
  

• d) Large earthquakes cause movement

What happens at a mid-ocean ridge?

• a) Old crust is destroyed
  

• b) New oceanic crust forms
  

• c) Plates collide
  

• d) Earthquakes stop occurring

What type of plate boundary occurs when two plates slide past each other?

• a) Divergent
  

• b) Convergent
  

• c) Transform

• d) Subduction

Which of the following features is created by a convergent boundary?

• a) Rift valley
  

• b) Mid-ocean ridge
  

• c) Earthquake fault line
  

• d) Mountain range

Which of these best describes the lithosphere?

• a) A layer of molten rock
  

• b) A rigid layer made of the crust and upper mantle
  

• c) The layer of liquid rock below the mantle
  

• d) The center of the Earth

Which process helps explain why older oceanic crust is found farther away from mid-ocean ridges?

• a) Plate subduction

• b) Weathering and erosion
  

• c) Seafloor spreading
  

• d) Volcanic eruptions

What occurs when one tectonic plate sinks beneath another?

• a) Transform motion
  

• b) Subduction
  

• c) Divergent spreading
  

• d) Rock erosion

What type of rock forms from compacted sediments?

• a) Igneous
  

• b) Sedimentary
  

• c) Metamorphic
  

• d) Volcanic

Which factor is MOST responsible for weathering and erosion?

• a) Earth’s gravity
  

• b) Human activity
  

• c) Water, wind, ice and gravity

• d) The movement of tectonic plates