Given a scientific passage and an answer, generate a question for the given answer.

[Q]: Passage: Adolescents may have mood swings because of surging hormones. Answer: surging hormones
[A]: Many adolescents experience frequent mood swings. name one of the causes for this.

[Q]: Passage: Figure 12.7 Statues made from carbonate compounds such as limestone and marble typically weather slowly over time due to the actions of water, and thermal expansion and contraction. However, pollutants like sulfur dioxide can accelerate weathering. As the concentration of air pollutants increases, deterioration of limestone occurs more rapidly. (credit: James P Fisher III). Answer: air pollutants
[A]: Deterioration of limestone occurs more rapidly as the concentration of what increases?

[Q]: Passage: As erosion by groundwater continues, the ceiling of a cave may collapse. The rock and soil above it sink into the ground. This forms a sinkhole on the surface. You can see an example of a sinkhole in Figure below . Some sinkholes are big enough to swallow vehicles and buildings. Answer: sinkhole
[A]:
What is formed when the ceiling of an underground cave collapses?