On Mohs' hardness scale, ordinary window glass has a hardness of about

A. 7-8
B. 5-6
C. 2-3
D. 3-4


Answer: B

Environmental & Atmospheric Sciences

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Compare and contrast igneous rocks and volcanic rocks. How and why are they different?

Provide specific examples of both. What will be an ideal response?

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Which of the following would not be an act of predation?

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What would likely provide the LEAST amount of information on the direction of ice flow?

a. roche mountonnée b. striations c. kettles d. drumlins

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