Plate Tectonics Review Quiz

What evidence did Wegener have for his theory of continental drift?

• He had no evidence.

• He knew that plant and animal fossils, as well as rock layers, matched on the two continents of Africa and South America.

• He explained how continents moved apart.

Why were people skeptical about Wegener's Theory?

• Religious people didn't believe in theories.

• Wegener forgot to publish his results.

• It was just not a good theory.

• Wegenery could not provide evidence for the theory.

Tectonic plates float on the ___________________________.

• outer core

• inner core

• asthenosphere

• lithosphere

Why is Earth not growing in spite of sea floor spreading?

• because of subduction in the Atlantic Ocean.

• because of subduction in the Indian Ocean.

• C. because of subduction the Pacific Ocean.

• because of subduction in the Gulf of Mexico

The ________ in the asthenosphere is described as a “giant conveyor belt”.

• magma

• convection currents

• spinning

• lithosphere

Most earthquakes happen along _____________________.

• the Ring of Fire

• faults

• volcanic mountains

• ridges

The oldest crust (rocks) are found _________ the mid-ocean ridge.

• farthest

• nearest

• along

• away

The youngest crust( rocks) are found _________ the mid-ocean ridge

• farthest

• nearest

• along

• away

What evidences do scientists use to support the continental drift theory?

• rocks, fossils, air

• rocks, water, ice

• rocks, fossils, mountains

• rocks, fossils, human beings

Who came up with the theory of sea floor spreading?

• Alfred Wegener

• Harry Hess

• ancient Greeks

• Albert Einstein