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Weathering

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Questions	Answers
Break down of rocks into smaller and smaller peices	weathering
it is simply the breakdown of rocks into smaller pieces by physical means	mechanical weathering
the chemical break down of rocks and minerals into new substances	chemical weathering
contains more acid than normal precipitation	acid precipitation
It is a chemical reaction in which an element combines with oxygen to form oxide	oxidation
action of rocks and sediments grinding against each other and wearing away exposed surfaces	abrasion
the break down of rocks caused by plants or animals	biological weathering