destinylyons21 destinylyons21

11-11-2014
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Which occurs on earth more often? Physical or chemical changes?

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11-11-2014

Chemical changes I think but also I think both but mostly chemical I think.
Hope it helps

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02saule 02saule

11-11-2014

Chemical because there are now more chemicals in the world then physical but around 1,000 years ago it would have been physical.

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