Continental Drift and Seafloor Spreading Test

What do scientists believe is responsible for the movement of tectonic plates?

• Thermal energy that radiates from the sun
• Friction between the lithosphere and asthenosphere
• Convection currents within the asthenosphere
• Earth’s rotation

According to the Continental Drift Theory:

• The continents were once joined together as a supercontinent. Over time, the supercontinent broke into continents that drifted apart.
• The continents are slowly drifting towards each other. Eventually, they will collide and destroy each other.
• The continents are slowly growing in size due to tectonic plate movement.
• The continents are slowly sinking down into Earth’s mantle.

Which of the following is a piece of evidence that support’s the Theory of Continental Drift?

• Coal deposits in North America match up with coal deposits across Europe.
• The east coast of South America complements the west coast of Africa.
• Fossils of the same plants and animals living at the same time were found in South America, Africa, India and Australia.
• All of the above

According to the Continental Drift Theory, all the continents were once joined as a supercontinent known as:

• Gondwana
• Laurasia
• Pangaea
• Antarticaland

How long did it take Pangaea to breakup and for the continents to move to their current positions today?

• Hundreds of years
• Thousands of years
• Nearly a million years
• Hundreds of millions of years

What is seafloor spreading?

• The slow destruction of crust or lithosphere
• The creation of new crust or lithosphere
• The distribution of oceanic crust across the seafloor

Seafloor spreading occurs at:

• a convergent boundary
• a divergent boundary
• a transform boundary

What is convection?

• Transfer of heat by movement of the fluid
• Transfer of heat across a vacuum
• Transfer of heat between objects that directly touch each other
• Transfer of heat by electromagnetic waves

What is evidence?

• A hypothesis that turns out to be correct
• A theory that has been proven to be be factual
• Information that helps prove something to be true
• Information that is opinionated and not factual

Matching rocks and minerals on separate continents is a form of:

• Landform evidence
• Geologic evidence
• Fossil evidence
• None of the above – this is not a form of evidence