Q: Fact: the excretory system removes waste from the body
Question: The excretory system removes waste from what?

A: persons insides

Q: Fact: a human can pedal a bicycle
Question: Peddling a bicycle can be accomplished by

A: possessors of thumbs

Q: Fact: a seismometer is used to measure the strength or magnitude of an earthquake
Question: A seismometer would be ineffective

A: on a star

Q: Fact: tuna eat fish
Question: A tuna would prefer to consume

A:
Nemo