SCIENCE 10 QUIZ#5

What causes the tectonic plates to move?

• convection of magma
• the earth's magnetic field
• the earth spinning
• earth's gravitational pull

Sea floor spreading happens at what type of boundary

• Divergent
• Convergent
• Transform
• Mountainous

What is a major geological event that occurs when plates shift suddenly and release stored energy?

• earthquakes
• volcanic eruptions
• divergent boundaries

What does the theory of continental drift state?

• The continents were once joined in a super-continent and have moved over time
• Continents are stationary and do not move
• The Earth is broken into lithospheric plates that move due to convection currents
• none of the above

What causes ridge-push to occur?

• A. hot buoyant mantle beneath the ridge

• B. large quantities of volcanic rock near the ridge

• C. Both of these are correct

• D. Neither of these are correct

What is ridge-push?

• A. A force causing plates to move away from divergent plate boundaries

• B. A force causing plates to dive into the mantle

• C. A force causing plates to slide past one another

• D. A force that rips plates apart

What is the term for the force exerted by a tectonic plate descending into the Mantle?

• A. slab push

• B. slab pull

• C. plate resistance

• D. plate divergence

There is no radioactivity involved in the movement of plates.

• True

• False

2. The heat process caused by the uneven distribution of thermal energy in Earth’s interior is called _______.

• A. Ridge push

• B. Seafloor spreading

• C. slab pull

• D. mantle convection

3. What was the name of the super continent that existed 250 million years?

• A. Eurasia

• B. Disneyland

• C. Pangaea

• D. Wegenerland