TASK DEFINITION: Given a scientific passage and an answer, generate a question for the given answer.
PROBLEM: 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

SOLUTION: Deterioration of limestone occurs more rapidly as the concentration of what increases?

PROBLEM: Passage: Momentum is a vector quantity that has the same direction as the velocity of the object. Answer: object ' s velocity

SOLUTION: Momentum is a vector quantity that has the same direction as what?

PROBLEM: Passage: Monatomic cations have the same name as their parent element, whereas monatomic anions end in - ide . Answer: ends in - de

SOLUTION:
Monatomic cations have the same name as their parent element. what happens to monatomic anions?