Plate tectonics

Early observers thought continents may have been joined based on what observations

• rocks and fossils

• earthquakes.

• magnetism.

• coastlines look like puzzles

A German scientist Alfred Wegener was the first to hypothesize that ...........

• Continents were once joined
• The sea floor is spreading
• Continents are moving
• The Earth's magnetic pole flips

Pangaea was an ancient supercontinent made up of...

• America, Greenland, and Europe.
• Antarctica, India, and America.
• all of Earth’s continents.
• South Africa, India, Australia, and South America.

One of the fossils Wegener used to support his hypothesis of continental drift was

• Glossopteris
• Trilobite
• insects in tree amber
• ammonite molds

Peer scientists reviewing Wegener’s hypothesis of continental drift rejected his notion because

• His evidence was too few to make a valid conclusion 
• He did not explain how continents move and what moves them
• His evidence was not clear in showing  how continents were joined
• He lied by including false evidence

Where are most divergent boundaries located?

• Along the middle of most ocean floors
• Along the margins of most continents
• Across the middle of many continents
• All the above options are correct

The Himalayan mountains have some of the highest peaks like Mt. Everest, on which type of convergent boundary are they located?

• Oceanic/Continental
• Oceanic/Oceanic
• Continental/Continental
• None of the above

What type of features are associated with a divergent boundary?

• Rift valleys
• Volcanic mountains
• Fold mountains
• Fault block mountains

The mechanism that moves continents is based on heat energy moving by

• Radiation in the core
• Conduction in the lithosphere
• Convection in the Asthenosphere
• None of these options is true

What type of rock makes most of the oceanic crust

• Sedimentary
• Basalt
• Metamorphic
• Limestone