Science: Chapter 10 Section 1 & 2 Quiz

Which of the following best describes magma?

• melted rock that flows over Earth’s surface

• solid rock on Earth’s surface

• melted rock beneath Earth’s surface

• solid rock beneath Earth’s surface

Magma can form when

• melted rock cools and hardens on the ocean floor

• a sinking tectonic plate begins to melt at subduction zones

• moon and sun align in the atmosphere.

• rock is exposed to wind, water, and air at Earth’s surface.

What happens at a subduction zone?

• Two continental plates pull apart.

• Two oceanic plates pull apart

• A continental plate sinks under an oceanic plate.

• An oceanic plate sinks under a continental plate.

Which of the following might happen at a convergent boundary?

• Tectonic plates come together and collide

• Oceanic plates pull apart and stretch.

• Continental plates pull apart.

• None of the above.

Fault-block mountains can be created due to

• ice storm.

• earthquakes.

• convergent boundaries.

• none of the above

Most earthquakes and volcanic activity occur

• along tectonic plate boundaries

• along the shores of a beach.

• in the middle of an oceanic plate.

• none of the above.

During the formation of folded mountains, the top of the lithosphere and crust

• bends and fold.

• stretches.

• shrinks.

• none of the above.

Silica-rich magma results in what type of volcanic eruption?

• gentle eruptions

• calm eruptions

• violent eruptions

• none of the above

A composite volcano will always grow in size after an eruption

• True

• False

The crater of a volcano is located on the top of the mountain

• True

• False