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Author Question: About how many minerals make up the majority of rocks on Earth's surface? A) 10 B) 12 C) 40 ... (Read 75 times)

Tazate

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on: Jul 16, 2018
About how many minerals make up the majority of rocks on Earth's surface?
 
  A) 10
  B) 12
  C) 40
  D) 100

Question 2

From quartz's hard physical property, what can be inferred of its bonding structure?
 
  A) an interlocking three-dimensional framework of evenly spaced groups
  B) an interlocking three-dimensional framework of unevenly spaced groups
  C) two-dimensional sheets of hexagonally bonded groups, loosely bonded between sheets
  D) rhombically shaped ionic bonds between groups with even cleavage planes


milbourne11

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A


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