An island arc is formed by?

Ocean plate subducting under another ocean plate

Which of the following best describes the asthenosphere?

Semi-solid rock that the crust floats on

Which piece of evidence was used by Alfred Wegener to support continental drift?

South America and Africa fit together like a jigsaw

Best description for why volcanoes form in the diagram is?

Crust is weak and lots of heat is produced

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Earth Science Review Year 9

20 termsStudBud Administration84 plays

Pearson 10.1 to 10.3

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Questions 20

Answers

1
For the diagram of an earthquake, what is label A?
Impact zone
Epicentre
Slip zone
Focus
2
As you move further away from ocean ridges, sediment thickness increases, is evidence for?
Seafloor spreading
Plate tectonics
Magnetic striping
Continental drift
3
An earthquake under the water can form a?
Avalanche
Tsunami
Godzilla
Tidal wave
4
Which of the following is the most destructive wave?
P-wave
Surface wave
S-wave
Seismic wave
5
The movement of the mantle is caused by?
Rifting
Mantle current
Convection current
Plate tectonic current
6
Harry Hess came up with which of the following theories?
Seafloor spreading
Plate tectonics
Magnetic striping
Continental drift
7
What material causes magma to become viscous (thick)?
Silica
Pyrite
Scoria
Carbon
8
What of plate boundary is depicted in the diagram?
Transform
Subduction
Diverging
Converging
9
An island arc is formed by?
Two continental plates colliding
Ocean plate subducting under another ocean plate
Continental plate subducting under an ocean plate
Diverging plate boundary
10
Rifting is the process of?
Magma rising to the surface
More ocean being created
Continents splitting apart
Plates moving away from each other
11
In the magnetic striping diagram, what colour represents the newest rock formed?
Orange
White
Red
Yellow
12
What is the name of the current that formed when Australia split from Antarctica?
Antarctic circumpolar current
Great dividing current
Tasman sea current
Southern ocean current
13
Which of the following best describes the asthenosphere?
Semi-solid rock that the crust floats on
Part of core that heats mantle forming convection currents
Lower part of the mantle where convection currents occur
Crust and uppermost solid mantle
14
What is the name of the following device?
Seismic wave
Seismograph
Vibrometer
Seismometer
15
Which of the following material isn't found in a volcanic eruption?
Lumps of solid rock
Ash
Steam
Magma
16
Which piece of evidence was used by Alfred Wegener to support continental drift?
Ocean ridges were found on the seafloor
South America and Africa fit together like a jigsaw
Convection currents cause the plates to move
Island arcs are formed due to active volcanoes
17
Best description for why volcanoes form in the diagram is?
Crust is really thin
A hot spot forms melting through the crust
Friction generates a lot of heat
Crust is weak and lots of heat is produced
18
Which of the following is the fastest wave formed in an earthquake?
Surface wave
Seismic wave
P-wave
S-wave
19
Label 3 is named?
Inner core
Crust
Mantle
Outer core
20
In the following diagram, what geographical feature/s would most likely form?
Fold mountains
Volcanoes and earthquakes
Earthquakes
Volcanoes

Earth Science Review Year 9 Flashcards | StudBud