EAR 225 Exam 1 Study Guide With Complete Questions And Answers.
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Course
MST 225
Institution
MST 225
What caused the separation of the different compositional layers of the Earth? - correct answer Density of material composition; solar winds
The Solar System is about how old? - correct answer 5 billion (universe 13.7)
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What caused the separation of the different compositional layers of the Earth? - correct answer
Density of material composition; solar winds
The Solar System is about how old? - correct answer 5 billion (universe 13.7)
The Earth is about how old? - correct answer 4.6 billion
What mechanisms contributed to heating of the early Earth? (3) - correct answer
collisions between planetesimals, compression (gravity), radioactive decay
5 How do compressional (P) waves and shear (S) waves behave differently? - correct answer
P waves arrive first and are faster, s waves can't travel through gases and liquids
6 What are the key differences between the oceanic and continental crust? (overall age, composition,
mode of formation) - correct answer Oceanic- Younger, Thinner, and more dense
Continental- Much older, thicc af, less dense
7 What is the asthenosphere and what is its role in plate tectonics? - correct answer
Asthenosphere is the upper layer of mantle below lithosphere, helps create mountain ranges and
volcanoes
8 The most violent volcanic eruptions occur in which environment? - correct answer
subduction zones
9 The largest earthquakes occur in which environment? - correct answer subduction
zones or near deep sea trenches
10 What are the 3 fundamental types of lithospheric plate boundaries? - correct answer
convergent, divergent, transform
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