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

[EX Q]: Passage: Skeletal Muscles. Skeletal muscles enable the body to move. Answer: move
[EX A]: What do skeletal muscles enable the body to do?

[EX 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
[EX A]: What is formed when the ceiling of an underground cave collapses?

[EX Q]: Passage: A: Sodium chloride is an odorless white solid that is harmless unless consumed in large quantities. In fact, it is a necessary component of the human diet. Answer: sodium chloride
[EX A]:
What is an odorless white solid that is harmless unless consumed in large quantities?