ERSC 181 B001 Introduction to Geology (Boo1)
American Military University
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Discussion Notes:
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Exam for Week1
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ERSC181 B001 Introduction to Geology Test Bank (all previous questions/ answers) 2021/2022. A+ Guide.
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Pervious questions 
4.0/ 4.0 Points 
Which two elements are the most common in the crust? 
 A. iron and magnesium 
 B. potassium and magnesium 
 C. silicon and oxygen 
Which element comprises about 8% of the crust? 
 A. silicon 
 B. iron 
 C. aluminum 
Which of the following techniques is the MOST diagnostic or reliable? 
 A. color 
 B. hardness 
 C. cleavage 
Question 4 of 25 
0.0/ 4.0 Points 
Which of the following is considered to be composed of a mineral? 
 A. l...
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