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Q: Sam talks about an example of an igneous rock. Which of the following can it be?
  • A. Sandstone
  • B. Basalt
  • C. Limestone
  • D. Marble
Correct Answer: Option D - Sam discusses the example of igneous rock. It could be basalt. Basalt is a type of extrusive igneous rock. It is formed due to the rapid freezing of basaltic lava on the surface. It is found in particle-free or non-spiky form.
D. Sam discusses the example of igneous rock. It could be basalt. Basalt is a type of extrusive igneous rock. It is formed due to the rapid freezing of basaltic lava on the surface. It is found in particle-free or non-spiky form.

Explanations:

Sam discusses the example of igneous rock. It could be basalt. Basalt is a type of extrusive igneous rock. It is formed due to the rapid freezing of basaltic lava on the surface. It is found in particle-free or non-spiky form.