Chapter 9 Study Guide

1
Chapter 9 Study Guide

• Changes to the Earths Surface

2
Which of these landforms is always found on the
coast?

• A. valley
• B. canyon
• C. mountain
• D. peninsula

3

• The correct answer is D. A peninsula is always
  found on the coast.

4
Which of these is true of the Earths Surface?

• A. Earths surface is constantly changing.
• B. Change to Earths surface always takes a long
  time.
• C. All landforms on Earths surface extend into
  the water.
• D. The rocks on Earths surface move, but they do
  not change.

5

• The correct answer is A. The Earths surface is
  constantly changing.

6
Which describes what Earth undergoes all the time?

• A. plateau
• B. weathering
• C. crystallization
• D. metamorphosis

7

• The correct answer is B. Weathering describes
  what Earth undergoes all the time.

8
Which can cause physical weathering?

• A. water
• B. the crust
• C. landforms
• D. the surface

9

• The correct answer is A. Water can cause
  physical weathering.

10
How does acid rain form?

• A. Rain mixes with oxygen to form an acid.
• B. Rain mixes with sunlight to form an acid.
• C. Rain mixes with carbon dioxide to form an
  acid.
• D. Rain mixes with chemicals from water supplies.

11

• The correct answer is C. Rain mixes with carbon
  dioxide to form an acid.

12
Which is an example of erosion?

• A. when Earths plates move.
• B. when landforms cause physical weathering.
• C. when wind deposits weathered pieces of rock.
• D. when rainwater moves soil down a mountain.

13

• The correct answer is D. When rainwater moves
  soil down a mountain is an example of erosion.

14
How does deposition change Earths surface?

• A. by causing earthquakes
• B. by destroying parts of Earths surface
• C. by building up areas of Earths surface
• D. by making an area unfit for growing plants.

15

• The correct answer is C. The deposition changes
  Earths surface by building up areas of Earths
  surface.

16
Why do people do this to their shore?

• A. to stop erosion
• B. to stop volcanoes
• C. to stop deposition
• D. to stop a landslide

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• The correct answer is A. The people do this to
  their seashore to stop erosion.

18
How can a glacier erode landforms?

• A. The pressure of the glacier melts the rocks
  underneath.
• B. The glacier, which is a mixture of rocks,
  soil, and ice, slides across Earths surface and
  wears it away.
• C. The glacier contains chemicals that cause
  rocks to break.
• D. The glacier melts, and floating ice pushes
  rocks away.

19

• The correct answer is B. A glacier erodes
  landforms because the glacier, which is a mixture
  of rocks, soil, and ice, slides across Earths
  surface and wears it away.

20
How is a landslide like an avalanche?

• A. Both are caused by erosion.
• B. Both are rapid kinds of erosion.
• C. Both are caused by snow and ice.
• D. Both deposit material on steep hills.

21

• The correct answer is B. Both a landslide and an
  avalanche are rapid kinds of erosion.

22
What causes a volcano to erupt?

• A. Earthquakes heat up magma, which explodes.
• B. Magma comes through the crust in a weak spot.
• C. Movement in Earths plates heats up magma so
  it explodes.
• D. Violent weather rubs the crust bare and the
  magma escapes.

23

• The correct answer is B. A volcano erupts when
  magma comes through the crust in a weak spot.

24
What is labeled A?

• A. ash
• B. lava
• C. fault
• D. magma

A
25

• The correct answer is B. The diagram is showing
  lava.

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What is a fault?

• A. an earthquake
• B. a break in Earths crust
• C. the epicenter of an earthquake
• D. a place where the Earths crust is thick

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• The correct answer is B. A fault is a break in
  Earths crust.

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How can a volcano change Earths surface?

• A. It can cause fires.
• B. It can make the climate hotter.
• C. The continual flow of lava destroys farmland.
• D. It can cause glaciers to melt.

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• The correct answer is C. A volcano can change
  the Earths surface because continual flow of
  lava destroys farmland.