Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: Water can be boiled to kill giardia and most other pathogens.
[EX A]: Water can be boiled to kill giardia and most other what?

[EX Q]: Line graphs are especially useful for showing changes over time.
[EX A]: Line graphs are especially useful for showing changes over what?

[EX Q]: Deductive kind of reasoning involves formulating generalizations inferred from careful observation and the analysis of a large amount of data.
[EX A]:
What kind of reasoning involves formulating generalizations inferred from careful observation and the analysis of a large amount of data?