Volcanoes Quiz 17 (20 MCQs)

Quiz Instructions

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1. Hot spots result in the formation of what?

Correct Answer: A) The Hawaiian Islands.

2. How does a volcano form?

Correct Answer: D) A lot of lava flows out at one spot and forms a mountain.

3. A molten mixture of rock-forming substances, gases, and water from the mantle

Correct Answer: A) Magma.

4. An opening in Earth's crust

Correct Answer: A) Volcano.

5. Volcanoes that have recently erupted are known as:

Correct Answer: C) Active Volcano.

6. Where did the volcano erupt?

Correct Answer: B) Iceland.

7. What is it called when vibrations on Earth's surface cause a break in Earth's surface?

Correct Answer: A) Earthquakes.

8. When lava cools it becomes a what?

Correct Answer: C) Solid.

9. What type of boundary is associated with the Ring of Fire?

Correct Answer: A) Convergent.

10. This is one of the instruments geologists use to monitor and detect changes in elevation and tilt caused by moving magma?

Correct Answer: D) Tiltmeter.

11. What type of volcano is the most explosive?

Correct Answer: C) Composite.

12. A broad volcano with gently sloping sides is a .....

Correct Answer: A) Shield.

13. A steep cone-shaped hill or mountain

Correct Answer: A) Cinder cone volcano.

14. Which of the following analogyis correct about volcanic eruptions and its cause?

Correct Answer: B) Phreatomagmatic:magmaand water.

15. Volcanoes are classified in several ways. Based on their record of eruption, how are they classified?

Correct Answer: B) Active and Inactive.

16. What type of volcano is Mt. St. Helens?

Correct Answer: B) Composite.

17. Which planet has shield volcanoes and lava flows similiar to those on Earth?

Correct Answer: B) Venus.

18. An area where material from deep within Earth's mantle rises through the crust and melts to form magma.

Correct Answer: A) Hot spot.

19. The particles produced in volcanic eruptions are called .....

Correct Answer: B) Pyroclastic material.

20. Volcano that posess very little threat of eruption.

Correct Answer: C) Extinct volcano.