Why does weathering of granite bedrock produce rounded shapes?

Name: Why does weathering of granite bedrock produce rounded shapes?
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Spheroidal weathering is a type of chemical weathering that takes place on rocks that have previously undergone physical weathering. The corners and edges of the granite bedrock are gradually eroded away, leaving behind rounded shapes. This is a common occurrence in areas where granite bedrock is exposed to the elements over long periods of time.

Why Does Weathering of Granite Bedrock Produce Rounded Shapes