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Weathering
Question | Answer |
---|---|
Erosion | movement of rocks particles by wind water ice or gravity |
mechanical weathering | rock is physically broken insto smaller pieces |
abrasion | grinding away of rock by rock particles carried by water ice wind or gravity. |
ice wedging | water expands when it freezes causing rocks to crack |
chemical weathering | process that breaks down rock through chemical changes |
agents of chemical weathering | water oxygen carbon dioxide living organims and acid rain |
carbonic acid | weathers marble and limestone |
acid rain | polllution in the air with sulfur carbon and nitrogen compunds |