Hair growth is due to the continuous division of the basal cells of the hair growth is due to the continuous division of the basal cells of the hair papilla hair shaft hair root hair matrix

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

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