Geo 401 Exam #3 2023 with 100% correct answers

water-saturated sediment - correct answer -seismic wave amplitudes are largest in what material? South Africa - correct answer -based on your knowledge of plate tectonics, which of the following countries has the least hazard of earthquakes? P wave - correct answer -A type of seismic wave that compresses and expands the ground. S waves - correct answer -A type of seismic wave that moves the ground up and down or side to side outer core convection and spinning of the Earth on its axis - correct answer -which of the following is required for the generation of Earth's magnetic field? air heated by the Earth's surface is less dense than air above it - correct answer -the troposphere mixes by convection because --- atmospheric CO2 concentration decrease - correct answer -the erath has a natural mechanism that prevents it from overheating on long (hundred thousand year) timescales. Complete the negative feedback below that describes this mechanism: atmospheric CO2 concentration increase -- global mean temperature increase -- the weathering rate of silicate mineral increases -- ---- back radiation was lower than today - correct answer -"snowball earth" is a theory, which maintains that during several episodes in earth's ancient history (most recently 650 million years ago) glaciers extending almost all the way to the equator. How do you think back radiation at the earth's surface during these episodes compared with today? earth's surface temperature increases, back radiation increases, weathering of silicate minerals consumes that co2 over hundreds of thousands of years - correct answer -which of the following occurs when large amounts of co2 are emitted into earth's atmosphere back radi