APES UNIT 4 REVIEW Questions and answers, 100% Accurate, rated A+

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APES UNIT 4 REVIEW Questions and answers, 100% Accurate, rated A+ Earth's spheres - ✔✔-lithosphere, atmosphere, hydrosphere, biosphere Earth's core levels - ✔✔-- inner core; solid - outer ... core; liquid - mantle - asthenosphere - lithosphere (earth's surface) Earth's surface composed of... - ✔✔-continental crust and oceanic crust Which is denser, oceanic crust or continental crust? - ✔✔-oceanic Plate tectonics theory - ✔✔-a model of movement of Earth's crust Convection currents exist in cells in the... - ✔✔-lower mantle and the upper mantle (asthenosphere) Wilson Cycle (1960's) Theory - ✔✔-Wilson proposed that land masses repeatedly join to form a supercontinent, and then split apart Why are fossil remains significant to proving continental drift? - ✔✔-fossil remains provide evidence from continent to continent that they were once connected divergent boundary - ✔✔-spreading apart constructive (oceanic lithosphere created) forms ridge/rift volcanic activity (sea floor spreading) Convergent boundary - ✔✔-subduction destructive (oceanic lithosphere destroyed) forms trenches volcanic activity transform boundary - ✔✔-lateral sliding neutral (doesn't create or destroy) doesn't form anything NO volcanic activity (earthquakes) define faults - ✔✔-fractures in the earth's crust caused by stress Types of faults - ✔✔-Type 1: normal fault Type 2: reverse fault Type 3: Strike-slip fault (on same plane)(ex: San Andreas Fault) factors that effect soil formation - ✔✔-parent material, climate, topography, organisms, time How is soil made? - ✔✔-weathering from wind, rain, hail, ice Agents of erosion - ✔✔-gravity, water, wind, glaciers 2 types of soil erosion - ✔✔-normal (geologic) and accelerated (interference of man) Porosity (of soil) - ✔✔-percentage of the total volume of rock consisting of voids permeability (of soil) - ✔✔-capacity of a rock to transmit fluids Most common gas in atmosphere - ✔✔-nitrogen most common greenhouse gas - ✔✔-Water vapor levels of atmosphere - ✔✔-(from closest to farthest from surface) troposphere stratosphere mesosphere thermosphere exosphere troposphere characteristics - ✔✔-WHERE WEATHER FORMS 75% of atmosphere stratosphere - ✔✔-where protective ozone layer floats 20% of molecules in the atmosphere mesosphere - ✔✔-where shooting stars blaze where space debris burns up thermosphere - ✔✔-where temperature rises thin air but absorbs solar radiation Exosphere - ✔✔-farthest layer from earth little to no air where is the ozone layer - ✔✔-Stratosphere process of ozone - ✔✔-1. oxygen molecules photolyzed (slow) 2. ozone and oxygen atoms react due to solar radiation 3. interconversion begins where UV radiation converts to thermal energy (heating) 4. ozone atom is lost due to reaction UV protection by ozone layer - ✔✔-UV-B is strongly absorbed. UV-A (visible light) is not absorbed (UV-B are harmful) Greenhouse effect - ✔✔-some infrared radiation passed through some is absorbed by greenhouse gases and admitted in all directions (effect is warmin [Show More]

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