volcanoes

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1 point

What is a volcano made of?

snow

rock

grass

water

1 point

What is magma?

small pieces of rock

water

melted rock

fire

1 point

Where is magma found?

under the earth's crust

inside a volcano

under all the oceans

all of the above

1 point

How is a volcano formed?

Rock inside a mountain moves around.

Rock inside the earth melts and comes out of the ground through a crack.

Plates slide around in the earth's mantle.

Snow and ice melt.

1 point

What happens to cause a volcano to erupt?

People hiking on a mountain.

Too much rain.

Magma pushes up and out of the volcano.

Steam inside the volcano

1 point

Where is lava found?

inside the volcano

outside a volcano

in the earth's core

under the earth's surface

1 point

A volcano can help the earth by

making new rock when lava cools

breaking down mountains

burning up the land around it

destroying animals and sometimes people

1 point

No one knows for sure when a volcano will erupt.

True

False

1 point

All volcanoes erupt.

True

False

10.

1 point

Magma makes its way to the earth's surface through cracks and weak spots in the crust.

True

False

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