Answer: Uncertainty
Explanation:
The principle of science used here is uncertainty. The various doctors attributed their sickness to hookworm gotten from cat and dogs but the uncertainty here is that it wasn't described they had access to the water because they were disappointed by the feces of dogs and cat found around, and how they all got the same rashes at the same time is questionable
I believe the answer will be D)
D. none of the above, because you need a good environment to exercise, you can live not in a house and still work out, and you don't have to live on a farm to exercise.
<span>1. The most watched television event in the United States is the Super Bowl.
</span><span>2. American Football grew out of English sports such as rugby and soccer and became popular on American college campuses in the late 1800s.
3. </span><span>It takes about 600 cows to make one full season’s worth of NFL footballs.
</span>4. <span>A cow has only a 1 in 17,420,000 chance of becoming an NFL football that is used in the Super Bowl.
</span>5. <span>Only two players have caught, rushed, and thrown a touchdown against the same team in the same game: Walter Payton in 1979 and David Patton in 2001.
</span>6. <span>Just two years after finishing their careers, approximately 78% of NFL players go bankrupt.
</span>7.<span>Injured football players in televised NFL games get six more seconds of camera time than celebrating players.
</span>8. <span>NFL cheerleaders typically make $50–$75 a game. However, by the time they spend money on makeup, hair accessories, dance classes, etc., they end up losing money.
</span>9. <span>Deion Sanders is the only person in history to both hit an MLB home run and score an NFL touchdown in the same week. He’s also the only person to play in the World Series and the Super Bowl.
</span>10. <span>The NFL has an annual revenue of $9 billion, with a profit of 1 billion.
</span>your welcome sir
This is partially true. There are many contributing reasons but this is one.