Unit 2 Test

The person who proposed continental drift in 1915 was __________. (Part 1)

• Harry Hess

• Albert Einstein

• Albert Wilder

• Alfred Wegener

The hypothesis of continental drift was well accepted when it was proposed in 1915.

• True

• False

Which of the following does NOT support continental drift? (Part 1)

• jigsaw effect

• mountains of the same origin on different continents

• oceans surround all continents

• fossils of the same species on different continents

What type of boundary creates a rift valley where seafloor moves apart at mid ocean ridges? (Part 1)

• transform

• compression

• divergent

• convergent

Which of the following is denser (heavier)? (Part 1)

• oceanic crust

• continental crust

What is the driving force behind seafloor spreading and continental drift? (Part 1)

• convection currents in the mantle

• air pressure

• earthquakes

• heat from the sun

Why was continental drift (geodynamics) rejected in 1915? (Part 1)

• A. Wegener wasn't a geologist.

• B. Wegener couldn't describe how it was happening or explain the driving force behind continental drift.

• C. Not enough time had passed to accept Wegener's ideas.

• D. Wegener didn't have any evidence from the continents.

What was the one world continent that existed from 280-200 million years ago called? (Part 1)

• Eurasia

• Pangaea

• Laurasia

• Gondwanaland

New continental crust is formed at mid ocean ridges.

• True

• False

The deepest part of the ocean is located within the Mariana Trench.

• True

• False