Question

which of the following human activities would most likely lead to subsidence, the sinking of the surface of earth?
a. using toxic chemicals in the manufacturing of goods
b. filtering out pollutants at a water treatment plant
c. excess removal of water from underground reservoirs
d. storing drinking water in small above-ground basins

Explanation:

Subsidence (surface sinking) occurs when underground support is lost. Removing too much groundwater reduces the pressure that keeps underground rock/soil structures stable, causing the surface to sink. Option A causes chemical pollution, Option B is an environmental protection measure, and Option D does not affect underground structural support.

Answer:

C. Excess removal of water from underground reservoirs