Choose the type of exposition in which the key words below would most likely appear. reason, why, affect, effect, because, result, outcome contrast/comparison illustration/example definition classification/division process analysis cause/effect

Cause/effect

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To form soil, the two processes which must occur are erosion and weathering, so the correct answer is "soil formation is a continuous presses, but also one which takes a long time, it can sometimes take more than five hundred years for 1cm of soil to form.