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Questions and Answers
What happens to the rock as it spreads near the Earth's surface?
What happens to the rock as it spreads near the Earth's surface?
- It loses heat (correct)
- It gains heat
- It changes color
- It becomes denser
What happens to the rock containing carbon from dead plankton as the plates collide?
What happens to the rock containing carbon from dead plankton as the plates collide?
- It is carried deep into the Earth (correct)
- It becomes denser
- It turns into a gemstone
- It evaporates into the atmosphere
What is released back into the atmosphere during an eruption?
What is released back into the atmosphere during an eruption?
- Carbon dioxide and gas (correct)
- Oxygen and water vapor
- Nitrogen and methane
- Helium and sulfur dioxide
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Study Notes
- Hot rocks near the Earth's surface rise due to heat from the core
- These rocks spread in two directions and go sideways, eventually losing heat
- Cooler rocks sink back down, dragging the Earth's crust apart and causing continents to move
- During plate collisions, carbon-containing rock from the seafloor is carried deep into the Earth
- This rock layer melts, releasing carbon dioxide and gas back into the atmosphere during volcanic eruptions.
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