1, How is land subsidence related to a rise in human population?

A. Land subsidence happens when the increased demand for water results in rapid recharging of aquifers.
B. Land subsidence happens when the increased demand for water causes the levels of the water table to lower.
C. Land subsidence happens when the increased demand for water causes the levels of the water table to rise.
D. Land subsidence happens when the increased demand for water is countered with sound agricultural practices.

B. Land subsidence happens when the increased demand for water causes the levels of the water table to lower. As the human population increases, the demand for water also increases, leading to over-extraction of groundwater and lowering of the water table. This, in turn, can cause the land above the aquifer to sink or subside, leading to land subsidence.