Continental Drift and Layers of the Earth

Order the layers of the Earth from the most dense to the least

• crust, mantle, outer core, inner core
• inner core, outer core, mantle, crust
• crust, mantle, inner core, outer core
• inner core, outer core, crust, mantle

What is a difference between oceanic & continental crust?

• Continental is thicker and less dense

• Oceanic is thicker and less dense

• Continental is made of basalt

• Oceanic is made of granite

What is the driving force behind plate tectonics?

• convection currents in the mantle

• magnetic reversal in the outer core

• volcanic eruption

• subduction zones

Which of the following is not a piece evidence for The Theory of Plate Tectonics

• fossils

• glaciers

• rocks

• rivers

Volcanoes are formed at this type of boundary:

• oceanic-oceanic

• oceanic-continental

• continental-continental

• none of the above

How is new crust made?

• sea-floor spreading
• continental-oceanic
• continental-continental
• rift valley

A difference between the inner and outer core

• Outer core is solid
• Inner core is liquid
• Outer core has magnesium
• Inner core has iron

Mountain ranges are a result of:

• continental-continental transform boundaries

• oceanic-continental convergent boundaries

• continental-continental convergent boundaries

• sea-spreading

What travels from the mantle in order to form new crust?

• magma
• outer core
• convection currents
• asthenosphere

What are usually common at transform boundaries?

• volcanoes
• earthquakes
• rivers
• deserts