You are a geologist hiking along a trail collecting rock samples. You come across a group of loose crystals which have broken away from the rocks, so you bring them back to the lab to figure out which minerals they could be
What tests can you put them through to figure out what they are? (2.1)
What will be an ideal response?
Answer: First, I would examine the color and luster of the crystals to narrow it down a bit. I would find the different masses of the minerals to determine their density and compare them to other specimens in textbooks. This would narrow my search down even more. Then, I would conduct the scratch test on the various minerals, scratching one another and ranking them in order, then comparing them to the Mohs Hardness Scale. After, I would examine the cleave of the mineral, and compare that to known minerals' cleaves. Last, I would find the streak of the minerals, and at this point, the minerals should be identified.
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Which of the following is not a criterion for defining something as a mineral?
A) Hard B) Orderly crystalline structure C) Naturally occurring D) Generally inorganic
Different computing algorithms are available for deriving slopes from an elevation raster. Summarize in words (not equations) their major differences.
What will be an ideal response?
The most difficult arena in which to attempt to gain consensus on environmental policy is
A) local. B) state. C) national. D) international.
For a given air mass, the ratio of the weight of water vapor to the total weight of the air mass is called the ________
Fill in the blank(s) with the appropriate word(s).