What is the difference between "magma" and "lava"?
A) Magma is formed deep in the Earth and lava forms near the surface of the Earth.
B) It is just a name change,and lava is what magma is called if it reaches the surface of the Earth.
C) Magma makes igneous rocks and lava forms volcanoes.
D) Magma is less dense than lava.
Correct Answer:
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Q1: Rhyolite is the fine-grained equivalent of this
Q2: If magma or lava cools quickly,the resulting
Q3: Obsidian exhibits a _ texture.
A)fine-grained
B)glassy
C)coarse-grained
D)porphyritic
Q5: Why do crystals in a magma stop
Q6: Rocks that contain high amounts of silica
Q7: Which of the following is not a
Q8: The texture of an igneous rock _.
A)is
Q9: What is required for an igneous rock
Q10: Intrusive igneous rocks are often characterized as
Q11: Why does magma rise toward the Earth's
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