The Ring of Fire, characterised by active volcanoes and frequent earthquakes, spans across which continents?

New Zealand, Asia, North America and South America

Where do mid-ocean ridges form?

On boundaries where plates are spreading apart

Why is Earth NOT expanding in size despite the fact that seafloor spreading creates new continental crust?

Because old continental crust is recycled and remelted into magma

The movements of tectonic plates on the Earth’s surface are caused by

Convection currents in the Earth

Volcanoes and earthquakes mainly occur

Along fault lines and plate boundaries

Divergent boundaries are also called constructive boundaries because

Magma flows up between the plates and forms new crust

The Earth is made up of distinct layers. The order of these layers (from inside to outside) are

Inner core, Outer core, Mantle, Crust

Why are earthquakes generally more destructive than volcanoes?

The area affected by an earthquake is larger

Most of the science community did not accept Alfred's hypothesis. Why not?

He could not explain how the continents were moving

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Year 9 Earth Sciences Pre Test

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Questions 22

Answers

1
Which layer is responsible for the movements of the tectonic plates on the Earth’s surface?
Mantle
Inner Core
Outer Core
Continental crust
2
How do the plates move at a transform boundary?
They move away from each other
They move toward each other
They do not move
They move alongside each other
3
What type of plate boundary results in the formation of mountain ranges like the Himalayas?
Convergent boundary
Mid-ocean boundary
Transform boundary
Divergent boundary
4
What is the name given to the place on the Earth’s crust most affected by an earthquake and directly above its source?
Epicentre
Fault line
Subduction zone
Mid-line Ridge
5
The Ring of Fire, characterised by active volcanoes and frequent earthquakes, spans across which continents?
New Zealand, Asia, North America and Africa
New Zealand, Asia, North America and South America
Africa, Asia, New Zealand and Antarctica
Africa, Europe, North America and South America
6
Where do mid-ocean ridges form?
On boundaries where plates are spreading apart
On boundaries where plates are colliding
On boundaries where plates are sliding past each other
On boundaries where one plate is being forced under another
7
Which type of boundary is known for causing big earthquakes?
Subduction boundary
Transform boundary
Convergent boundary
Divergent boundary
8
Why is Earth NOT expanding in size despite the fact that seafloor spreading creates new continental crust?
Because new mountain ranges are constantly being formed and built up
Because old continental crust is recycled and remelted into magma
Because continental crust is destroyed by volcanic and earthquake activity
Because human activity has slowed the process of plate tectonics
9
Which of the following is NOT evidence used to support Wegner’s theory of continental drift?
The extinction of dinosaurs
The shapes of continents fitting together/matching-up like puzzle pieces
Mountain ranges and rock types lining up across continents
Fossil evidence found on opposite sides of an ocean
10
What type of plate boundary causes old rock back into the mantle, forming features like the Marianas trench?
Continental boundary
Transform boundary
Convergent boundary
Oceanic boundary
11
The movements of tectonic plates on the Earth’s surface are caused by
Ocean currents and erosion
The gravitational pull of the moon on continental crust
The magnetic field of Earth’s core
Convection currents in the Earth
12
The process whereby oceanic crust moves apart at a mid-ocean ridge is called
Oceanic divergence
Convergent activity
Tectonic separation
Seafloor spreading
13
According to Wegener's continental drift hypothesis, the continents were once part of a supercontinent called
Gondwana
Pangea
Europa
Dinotopia
14
Volcanoes and earthquakes mainly occur
In the centre of tectonic plates
Along fault lines and plate boundaries
On the surface of the oceans floor
Randomly across the Earth’s surface
15
Divergent boundaries are also called constructive boundaries because
The tectonic plates slide past each other causing earthquakes
Magma flows up between the plates and forms new crust
Old continental crust is re-melted there forming new magma
The rising sea floor creates strong ocean currents causing tsunami
16
Which layer(s) of the Earth make up the tectonic plates?
Continental and oceanic crust
Oceanic crust only
The inner and outer core
The upper and lower mantle
17
The Earth is made up of distinct layers. The order of these layers (from inside to outside) are
Inner core, Outer core, Mantle, Crust
Crust, Mantle, Inner core, Outer core
Inner core, Outer core, Crust, Mantle
Mantle, Inner core, Outer core, Crust
18
What kind of plate boundary results in the formation of a fault line like the San Andreas fault in California?
Convergent boundary
Transform boundary
Divergent boundary
Destructive boundary
19
Why are earthquakes generally more destructive than volcanoes?
They tend to occur in populated areas
The area affected by an earthquake is larger
Earthquakes are generally associated with tsunamis
They are caused by plate motions whereas volcanoes are not
20
Earth's tectonic plates move on average
50 cm a year
50 cm a week
5 cm a day
5 cm a year
21
Most of the science community did not accept Alfred's hypothesis. Why not?
He did not have enough evidence to support up his hypothesis
He did not publish his theory
The other scientists thought all of Alfred's evidence was a coincidence
He could not explain how the continents were moving
22
Which rock would be the same age as Rock C?
D
B
J
K

Year 9 Earth Sciences Pre Test Flashcards | StudBud