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1. Which of the following is the correct definition of minerals? (1 point)

a naturally occurring, inorganic solid that has a crystal shape and a definite chemical
composition

a naturally occurring, inorganic solid that forms through crystallization of melted materials••

a naturally occurring, organic solid that has a crystal shape and a
definite chemical composition

2. Which of the following is NOT a method by which minerals form? (1 point)
decrystallization••

water evaporation from a solution

cooling of magma or lava

3. Mid-ocean ridges normally form where tectonic plates are (1 point)

converging.

diverging.••

stationary.

4. Which of these statements best describes the relationship difference between minerals and rocks? (1 point)

Most minerals are made of rocks.

Most rocks are made of minerals.••

Rocks are solid, but minerals are not.

5. Which evidence from the sea floor shows that tectonic plates move? (1 point)

The sea floor is youngest near a mid-ocean ridge and older farther away.••

Mid-ocean ridges form the longest range of mountains on Earth.

The sea floor is thinner than the continental crust.

6. What happens immediately before a volcano erupts? (1 point)

Magma collects in the mantle.

Lava hardens to form volcanic rock.

Expanding gases push magma through the pipe.••


7. How does cycling of matter occur in Earth’s mantle? (1 point)

Hot, soft rock rises from the bottom of the mantle toward the top, cools, and sinks back through the mantle.••

Hot, soft rock sinks to the mantle, cools, and rises to Earth’s crust.

Solid rock sinks to Earth’s core and then rises to form lava.

8. Mount Twin Peaks, located in northern Vancouver Island, erupted three million years ago, and it has not erupted since then. Mount Twin Peaks is most likely (1 point)

dormant.

active.

extinct.••

9. Which of the following illustrates conduction as a mode of heat transfer? (1 point)

Leaving a metal spoon in a bowl of hot soup will make the spoon hot as well.••

Pasta rises and falls with the current in boiling water.

A campfire emits light waves, which in turn transfers heat to objects.

10. The diagram below shows the present-day location of South America and Africa. Remains of the extinct reptile Mesosaurus have been found in both locations. Which statement is the most logical conclusion to draw from this evidence?

Mesosaurus migrated across the ocean from South America to Africa.

The continents of South America and Africa were joined when Mesosaurus lived.

The present climates of South America and Africa are similar.

11. Which of the following causes Earth’s plates to move continuously? (1 point)

Earth’s magnetic field

convection in the Earth’s mantle

radiation in the Earth’s core

12. According to the image below, which of the following forms because of high heat and pressure?


13. Image courtesy of Discovery Education™ streaming
(1 point)

igneous rock
sedimentary rock
metamorphic rock

14. The diagram below shows a process in Earth’s crust. Which of the following statements best describes the process in the diagram?
Converging plates form volcanoes.
Diverging plates form mountains.
Diverging plates form a rift valley.

15. To locate the epicenter of an earthquake, a seismologist must determine all of the following except (1 point)

the difference between arrival times of P and S waves.

16. the distance from the epicenter to at least three different seismograph locations.
the intensity of the earthquake.

Which kind of magma produces a quiet volcanic eruption? (1 point)

magma that is rich in silica
magma that is fluid
magma that is low in silica

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10 answers

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  2. Sorry this is science

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  3. We don't do your work for you. However, we will be glad to respond to your answers. Consult your text.

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  4. Um what are the answers

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  5. Which of the following statements in seismology is correct?

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  6. ask mrs sue

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  7. what was the answers?

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  8. What's number 10?

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  9. Which is 10?

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    Not for me to say for 17,18,and19

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