Understanding Earth's Tectonic Movements

How fast do tectonic plates typically move?

• More than one centimeter each year

• About 107,000 kilometers per hour

• A few centimeters in a year

• As fast as the speed of light

What was the name of the supercontinent that existed over 200 million years ago?

• Atlantis

• Pangea

• Gondwana

• Eurasia

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What evidence supports the theory of plate tectonics?

• The color of the ocean

• The temperature of the Earth's core

• Matching coastlines

• The shape of clouds

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What kind of boundary occurs where two tectonic plates come together?

• Convergent boundary

• Divergent boundary

• Transform boundary

• Isolated boundary

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Which mountain range is formed by the collision of the Indian and Eurasian plates?

• The Andes

• The Rockies

• The Alps

• The Himalayas

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What happens at a divergent boundary?

• Plates collide

• Plates melt

• Plates move apart

• Plates slide past each other

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What causes earthquakes at transform boundaries?

• Pressure build-up and release

• Volcanic eruptions

• Melting of the plates

• Plates moving apart

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What is the main force that drives the movement of tectonic plates?

• Magnetic fields

• Gravity

• Solar radiation

• Wind

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What is the asthenosphere?

• A layer of molten lava beneath the Earth's crust

• The outer layer of the Earth's atmosphere

• The section of the mantle just below the lithosphere

• The inner core of the Earth

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How do scientists believe continents were positioned millions of years ago?

• Floating freely on the ocean

• Clustered around the equator

• Spread evenly across the Earth

• All connected in one big supercontinent

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