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Author Question: Which of the following rocks would be the first to weather in a humid climate? Which would be the ... (Read 55 times)

ARLKQ

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on: Jul 29, 2018
Which of the following rocks would be the first to weather in a humid climate? Which would be the last? Defend your answers. (a) granite (b) sandstone (c) limestone (d) halite
 
  What will be an ideal response?

Question 2

Minerals in volcanic rocks are usually smaller than minerals in plutonic rock. Why is this?
 
  What will be an ideal response?


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Mollythedog

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: Halite would be the first to weather since it is composed of NaCl and dissolves easily in a humid environment. Granite would be the last to weather since it is very resistant to mechanical and chemical breakdown.

Answer to Question 2

Answer: Volcanic rocks form at Earth's surface. Plutonic rocks form beneath Earth's surface. Because volcanic rock is extruded at the surface, it cools faster than plutonic rock. The shorter the cooling time, the smaller the crystals.


ARLKQ

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

shailee

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Reply 3 on: Yesterday
Excellent

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