Identify each situation below if it shows as an example of mechanical or chemical weathering. Write M for mechanical weathering or C for chemical weathering in the blank. 1. The wedging of tree roots along sidewalks, breaking apart rocks and cement 2. Limestone reacting with carbonic acid 3. Animals burrowing and digging in rock 4. Repeated freezing and thaw of water that cracks the rock 5. Acid from plants' roots that break up the rock
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