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Questions and Answers
What type of rock is obsidian?
What type of rock is obsidian?
- Coarse in texture
- Hardened volcanic ash
- Lightweight and covered in small holes
- Black and glassy looking (correct)
Which rock type forms from cooled magma under the Earth's surface?
Which rock type forms from cooled magma under the Earth's surface?
- Pumice
- Basalt
- Tuff
- Granite (correct)
What distinguishes intrusive igneous rocks from extrusive igneous rocks?
What distinguishes intrusive igneous rocks from extrusive igneous rocks?
- They cool slowly under the Earth's surface (correct)
- They have small holes on the surface
- They form quickly on the Earth's surface
- They are black and glassy
Which rock type is often used for countertops and stone pillars?
Which rock type is often used for countertops and stone pillars?
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What is the main similarity between pumice and the foam in a soda?
What is the main similarity between pumice and the foam in a soda?
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