Question: If dams can form canyons, then what can form canyons? Answer choices: - spring - storms - dams - mines - salmon - two - rain - cut
Answer: dams

Question: If contact between granite over long periods of time causes granite to smooth, then contact between what over long periods of time causes them to smooth? Answer choices: - graptolites - Smooth music. - Contact lenses. - calcite - Granite. - loose soil - rivers - Time periods.
Answer: Granite.

Question: If jet fuels mutate organisms, then what in an airplane can mutate organisms? Answer choices: - an anion - Damages them - Jet fuel - light energy - Toxicity - Allergies - kill them - heat
Answer:
Jet fuel