Chemistry Topic 1/Topic 2 ,Rocks

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1. What are the properties of Limestone and Chalk?

  • They are easily eroded and they aren't formed at high pressures so they contain fossils.
  • They are strong and used for cars.
  • They are red as they are formed at high pressures.
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Other questions in this quiz

2. How are sedimentary rocks formed?

  • When a volcano erupts.
  • Layers and layers of sediment are laid on seas the weight presses down, squeezes out water.
  • When metamorphic gets hot.

3. What was the early atmosphere like?

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

4. Name another way volcanic activity changes the atmosphere?

  • Carbon dioxide
  • Oxygen.
  • Carbon monoxide.
  • Nitrogen.

5. 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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