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Practice Test Exam for GE2000 exam 1 Verified $12.99   Add to cart

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Practice Test Exam for GE2000 exam 1 Verified

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  • GE2000

Practice Test Exam for GE2000 exam 1 Verified whats a mineral - CORRECT ANSWER-A naturally formed, inorganic solid that has a definite crystalline structure and has a specific chemical composition physical properties to identify minerals - CORRECT ANSWER-luster, color, crystal ha...

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  • August 2, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • GE2000
  • GE2000
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TIFFACADEMICS
Practice Test Exam for GE2000 exam 1
Verified
whats a mineral - CORRECT ANSWER-A naturally formed, inorganic solid that has a
definite crystalline structure and has a specific chemical composition

physical properties to identify minerals - CORRECT ANSWER-luster, color, crystal
habit, hardness, streak, cleavage/fracture

Vitreous luster: - CORRECT ANSWER-resembling glass; reflects light like a window
pane

silicates = what percent of earths crust - CORRECT ANSWER-92%

carbonates = what percent of earths crust - CORRECT ANSWER-8%

Fe = what percent of earths - CORRECT ANSWER-35%

O2 = what percent of earths - CORRECT ANSWER-30%

Si = what percent of earths - CORRECT ANSWER-15%

Mg = what percent of earths - CORRECT ANSWER-10%

continental crust - CORRECT ANSWER-granitic composition (60-70% SiO2), density
~2.7 g/cm3, 20-70 km thick

oceanic crust - CORRECT ANSWER-basaltic composition (~50% SiO2), density ~2.9
g/cm3, 4-7 km thick

mantel - CORRECT ANSWER-- peridotite composition (~40% SiO2) - ~2800 km thick
- density 3.3-6 g/cm3
- ~80% of Earth's mass and volume

outer core - CORRECT ANSWER-- liquid Fe and Ni
- density 10-12 g/cm3

inner core - CORRECT ANSWER-- solid Fe and Ni
- density 13 g/cm3

lithosphere - CORRECT ANSWER-- Solid (rigid)
- Crust + upper mantle
- 100-150 km thick

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