Final answer:
Land sinkage can be caused by factors such as mining, tectonic processes, and groundwater restoration, but not by groundwater withdrawal.
Step-by-step explanation:
Land sinkage can be caused by various factors, such as mining of natural resources, natural tectonic processes, groundwater restoration, and groundwater withdrawal. However, groundwater withdrawal is the exception in this case and does not contribute to land sinkage.
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