Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

[Q]: Fact: as lightness in color of an object increases , the ability of that object to reflect light will increase
[A]: What impacts an objects ability to reflect light?


[Q]: Fact: wind and rain cause erosion
[A]: The face of the sphinx has changed from?


[Q]: Fact: when the needle of a compass lines up with Earth 's magnetic poles , the needle points north
[A]:
A ship navigates with a magnetic compass because it is?