GEO 401 Exam 1 2023 with 100% correct answers

Two types of crust - correct answer -Oceanic and continental More dense, thinner type of crust - correct answer -Oceanic Less dense, thicker type of crust - correct answer -Continental Minerals of crust - correct answer -Low density silicate minerals, O, Si, Al, K Moho - correct answer -Mohorovicic Discontinuity, separates crust from mantle Mantle - correct answer -Most of planet, high density silicate minerals (O, Si, Mg, Fe, Ca), density = 3.4g/cm3, upper ~100km is strong/rigid/solid, lower ~100km is weak and deformable, ductile, SOLID ROCK MOSTLY Outer core - correct answer -Mostly Fe, also Ni, S, O, liquid bc of temperature, density = 11g/cm3 Inner core - correct answer -Mostly Fe, also Ni, solid bc of pressure, density = 13g/cm3 Earth is zoned by what two things - correct answer -Density and strength Lithosphere - correct answer -Crust and top 100km of mantle, relatively cold/strong/rigid Asthenosphere - correct answer -Weaker part of upper mantle, hot/weak/ductile, NOT magma 3 ways plates interact - correct answer -Diverge, converge, transform