Quiz continental drift and seafloor spreading

1. Scientists used the pattern of alternating normal and reversed polarity in rocks to create the geomagnetic

• time scale
• sea-floor time scale
• reversal time scale
• normal time scale

2. What was Wegener's hypothesis called?

• seafloor spreading
• plate tectonics
• continental drift
• slab pull

3. How does rock that is closer to a mid -oean ridge compare to rock that is farther away

• it is larger
• it is smaler
• it is older
• it is younger

4. Wegener hypothesized that the continents formed p art of a single land mass or ______ known as Pangea.

• mid ocean ridge
• monocontinent
• supercontinent
• world land

5. Continental drift states that continents have moved ______ to their current location.

• vertially
• horizontally
• quickly
• very little

6. A fossil fern that helped support the theory of continental drift

• Mesosaurus
• Glossopteris
• Glomar
• Pangea

7. Matching _____ on different continents is evidence for continental drift

• river systems
• rock structures
• weather patterns
• wind systems

8. Fossil evidence found in Antarctica indicates

• desert environments
• a warm climate once existed
• the climate has always been cold
• there are no fossils in Atarctica

9. A ________ is a sensitive instrument used to record magnetic fields on the seafloor.

• seismometer
• geologist's compass
• Glomar
• magnetometer

10. The oldest material on the ocean floor is about ______ million years old.

• 100
• 180
• 400
• 600