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geo.chapter two

geography chapter two

what is the planets in order from closest to the sun? mercury, Venus, earth, mars, Jupiter, Saturn, Uranus, Neptune, Pluto
what are asteroids? are small, irregularly,shaped, planets like objects.
what are comets? made of icy dust particles and frozen gases, look like bright ball with long feathery tails.
what are meteoroids? chunks of rock and iron
hydrosphere oceans, lakes, rivers and other bodies of water make up part of the earth.
lithosphere the earths crust.
atmosphere layer of gases extending above the planets surface.
biosphere part of the earth that supports life
core at the very center of the planet is super hot but solid
mantle a thick layer of hot, dense rock
crust a rocky shell forming the earths surface
continental drift the theory that the continents were once joined and the slowly drifted apart
Pangaea one gigantic super continent
plate tectonics refers to all the physical processes that create many of the earths physical features
subduction the heavier sea plates dives beneath the lighter continental plate
spreading sea plates also can pull apart in a process
faulting occurs when the folded land cannot be bent any further
faults plates may grind or slide past each other, creating cracks in the earths crust
ring of fire one of the most famous earth quake
Created by: msorensen



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