Continental Drift, Plate Tectonics

Which of the following evidence was used to support theory of continental drift?

• A) Continents fit together like a puzzle

• B) Similar fossils were found on separate continents

• C) Different types of rock, mountain structures, landforms are found all over the world.

• D) All of the above

• E) Only A and B

If you took rock samples from the Mid-Atlantic Ridge, the youngest rock would be

• located where the plates collide

• located at the place where rocks are furthest from the rift valley

• Located at the center of the ridge (rift valley), where oceanic crust is formed

• none of the above; all the rocks would be the same age

Seafloor Spreading occurs at a

• convergent boundary

• divergent boundary

• transform boundary

• continental boundary

The San Andres Fault is an example of a

• convergent boundary

• divergent boundary

• transform boundary

• subduction zone

What type of plate boundary is shown in this picture

• a convergent oceanic-oceanic boundary

• a divergent oceanic-oceanic boundary

• a convergent oceanic-continental boundary

• a divergent oceanic-continental boundary

At which type of boundary do you find most earthquakes form

• divergent boundary between two oceanic plates

• transform boundary between two oceanic plates

• convergent boundary at a subduction zone

• transform boundary between two continental plates sliding past each other

This map shows volcanic and earthquake activity. Where is the highest concentration of activity?

• all along the Atlantic Ocean

• all along the Pacific Ocean

• all along the coast of Africa

• all along Indian Ocean

A place where two plates meet; a break in Earth's crust

• plate
• fault
• fold
• crack

When two convergent plates come together where the denser one is forced under back into the mantle

• reduction
• conduction
• subduction
• convection

What forms when two continental, convergent plates push together?

• volcano
• mountain
• earthquakes
• island