A average sneeze travels at about 100 miles an hour. Rebecca designs an experiment to increase the speed of sneezes. She subjects four participants to different stimulants: pepper, bright light, pollen, and fizzy soda. While the participant sneezes Rebecca measures how fast air traveled through the nasal passage. What is the control in Rebecca’s experiment?
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The Speed Of A Typical Sneeze Is A Proven Fact That Will Not Change
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