A scuba tank is contaminated with 2% carbon monoxide. If you were to dive with it at 20 meters what would the equivalent affect be?
Underwater it is difficult to determine where a sound comes from because sound travels _____ times faster in water because water is ___________ than air.
a.) 4 / colder
b.) 4 / warmer
c.) 4 / denser
d.) 2 / denser
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