What is the difference between a rock that is cemented and a rock that is crystalline?
A) A rock that is cemented contains rounded grains that are held together by cement,whereas a crystalline rock contains angular grains held together by cement.
B) Crystalline rocks contain minerals,while cemented rocks contain rock fragments;both are held together by static forces between grains.
C) Minerals are held together as interlocking pieces in a cemented rock,whereas grains are held together by minerals precipitated in pore spaces in a crystalline rock.
D) Minerals are held together as interlocking pieces in a crystalline rock,whereas in a cemented rock the grains do not fit together like puzzle pieces and instead are held together by cement.
Correct Answer:
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Q1: Igneous rocks form from _.
A)heat and pressure
Q13: A(n)_ material is held together,solid,and must be
Q13: Composition describes the _.
A)degree of compaction and
Q14: Which of the following describes a rock?
A)
Q14: The picture below shows a(n)_ of rock
Q16: Which is a characteristic used to classify
Q17: Looking at a _ helps geologists identify
Q18: Which one of the pictures does NOT
Q21: Geologists sometimes use analytical equipment to help
Q21: Give the definition of rock texture.
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