Eaps 106 - Study guides, Class notes & Summaries

EAPS 106 Exam 1 review Questions and answers, rated A+ What is the outermost layer of the earth and what is its relative thickness? Crust; 35 Km What is 2nd layer of the earth and what is its relative thickness Mantle; 2850 Km Brainpower Read More What is the third layer of the earth and what is its relative thickness? Outer core; 2270 Km What is the fourth layer of the earth and what is its relative thickness? Inner Core; 1216 Km How did the earth acquire its internal heat? Heat o...

How we can simulate gravity on a spacecraft. - ️️By rotating the spacecraft, generating a centrifugal force that simulates gravity. "Down" always points outwards from the center of rotation How we know that the Oort Cloud is a sphere. - ️️Long period comets come form the oort cloud, a spherical collection of billions of small icy objects. We know it's a sphere because long period comets come at us from all directions. Why are there more impact cheaters on the moon today than ...

How climate change can influence the weather. - ️️The number of hot and extremely hot days has jumped dramatically compared to pre-1980 already. Hot day: temps more than 10 F above seasonal average, extremely hot day: Temps more than 20 F above seasonal average More severe and frequent local storms, more extreme temperatures, more frequent extreme weather events, just take the weather dial and turn it up to 1000 How greenhouse gases cause warming of the Earth's atmosphere. - ️️Aeros...

Why the outer core is a liquid, but the hotter inner core is solid - ️️Because the inner core is under more pressure What a passive plate margin is - ️️a boundary between continental crust and oceanic crust that is not a plate boundary What a supercontinent is - ️️one big continent with most or all of the land mass What an asperity is - ️️rough spots along the fault prevent the fault from sliding until they are broken What caused the high topography of the Himalayas and Tibet...

How do earthquake early warning systems work? - ️️seismic waves travel below the speed of light; therefore, a warning can arrive seconds before an earthquake (since EM radiation travels at the speed of light) Why does the mantle below the asthenosphere not flow easily? - ️️it is at higher pressure than the asthenosphere Why does the US Geological Survey believe there is high seismic hazard in the Midwest? - ️️historical data from previous earthquakes shows that a 500 year old fault...

Why earthquakes are felt farther away in the eastern US compared to the western US - ️️The crust is more broken up in the west because it is a plate boundary. Why is the interior of the earth layered - ️️Planetary accretion Why is the outer core a liquid? - ️️It is the only layer with a temperature higher than its melting temperature. Why Italy recently sent seismologist to jail - ️️for not predicting the 2009 M6.3 L'Aquila earthquake based on foreshocks. Why the US Geolo...

How do we know the Washington and Oregon coasts have experienced large numbers of tsunamis? - ️️layers within buried sand deposits along the coast What the Volcano Explosivity Index (VEI) measure? - ️️the amount of ash and rock ejected What type of scale is the VEI? - ️️logarithmic (each magnitude is 10 times larger than the previous) What was one notable effects of 1887 Krakatoa eruption? - ️️the famous Scream painting was inspired by the color change of the sunsets due to th...

How earthquake magnitudes are related to the relative magnitude of shaking? - ️️For every whole number increase in magnitude the amplitude of shaking goes up by a factor of 10. What is a mid-ocean ridge - ️️a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading/divergent margins. What is a passive plate margin? - ️️When a boundary between continental crust and ocean...

EAPS 106 Exam 1, Review Questions and answers, rated A+ The earth's four layers and their thicknesses --crust: radius = 6371 km, thiccness = 35 km mantle: radius = 6336 km, thiccness = 2850 km outer core: radius = 3486 km, thiccness = 2270 km inner core: radius = 1216 km, thiccness = 1216 km How did Earth acquire its internal heat? --The process of planet accretion results from lots of collisions, each producing heat. Combined with heat from the decay radioactive elements, the interior...