What evidence supports that the continents were once one large land mass?

Matching rock layers can be found in Africa and South America

What would cause plate movement?

convection currents in the mantle

Which best describes why continents have moved since the Earth first formed?

Tectonic plates float along convection currents in the Earth's mantle

What evidence tells scientists that there are different layers of the Earth?

analysis of earthquake wave data

What evidence do we have that the continents were once together?

The continents fit together like a puzzle piece.

How is it possible that a fossil was found in different continents.

they used to be joined together as a single landmass

What is the main difference between Earth's outer and inner core?

Earth's inner coure is solid while the outer is liquid

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Plate Tectonics

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Answers

1
Which earth layer contains convection currents that are responsible for the movement of tectonic plates?
Inner Core
crust
mantle
outer core
2
What evidence supports that the continents were once one large land mass?
North America and India have matching moutnain chains
Madagascar and India have similar shapes.
Matching rock layers can be found in Africa and South America
Bedrock in Australia and Greenland have glacier scratches
3
Volcanic eruptions are caused primarily by
Tectonic plates
Rocks by erosion
planetary winds
Earth in its orbit
4
What would cause plate movement?
convection currents in the atmosphere
convection currents in the mantle
a huge bang
convection currents in the biosphere
5
What causes the formation of mountain ranges?
deposition of sediments
collision of plate tectonics
uneven heating
erosion of ocean waves
6
Which best describes why continents have moved since the Earth first formed?
Earth's core vibrates, causing the movement of the continents
Tectonic plates float along convection currents in the Earth's mantle
Tectonic plates are made of molten lava.
Tectonic plates float along the ocean current
7
A fault line can show
movement of tectonic plates
soil deposits
rock formations
movement of air masses
8
What evidence tells scientists that there are different layers of the Earth?
analysis of earthquake wave data
rock samples
temperature taken
measurement of the Earths diameter
9
What evidence do we have that the continents were once together?
The continents are the same size.
The continents have mountain ranges
The continents fit together like a puzzle piece.
The continents have rocks.
10
When the Earth's plates come together and crash into each other what landform do they create?
an earthquake
an ocean
a rock
a mountain
11
Huge pieces of Earth's crust that move slowly over the mantle are called
Stones
Plates
Boulders
Rocks
12
How is it possible that a fossil was found in different continents.
there were bridges that crossed
they used to be joined together as a single landmass
they are close together
they are far apart
13
What is the main difference between Earth's outer and inner core?
Earth's inner core is gaseous while the outer core is liquid
Earth's inner coure is solid while the outer is liquid
Earth's inner core is liquid while the outer core is solid
Earth's inner core is liquid while the outer core is gaseous
14
Tsunamis are caused by
Hurricane winds
Air pollution
Earthquakes
Earth's rotation

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