Chemistry Topic 1/Topic 2 ,Rocks

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1. How do igneous rocks form?

  • When sedimentary are over 100 years old.
  • When magma pushes up into the crust before cooling and solidifying.
  • When a volcano erupts and the rock that lands in the sea as the salt turns it igneous.
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Other questions in this quiz

2. How does burning fossil fuels change the atmosphere?

  • It releases CO2.
  • It releases Argon.
  • Nothing.

3. What was the early atmosphere like?

  • 30% Oxygen, 50% Carbon dioxide and 20% Argon.
  • Mostly carbon dioxide (CO2) with virtually no Oxygen.
  • 50% Carbon dioxide and 50% Carbon Monoxide.

4. How does volcanic activity change today's atmosphere?

  • Sulfur dioxide causes volcanic smog when it reacts with oxygen/dust/sunlight.
  • It kills people.
  • It ruins houses.

5. What are Intrusive rocks?

  • Igneous rock cools slowly underground-forming big crystals(Granite)
  • Metamorphic rocks cools slowly and forms big crystals(Granite)
  • Rocks from inside a volcano.

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