Objects under water appearHow much faster does sound travel in water, compared to air?Water
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conducts heat away from your body
As you descend
water temp does your body need thermal protection
What does SCUBA mean
When water stratifies itself into layers, according to temperature, the boundary between layers is known as a(n): 1: Halocline. 2: Ichtyocline. 3: Thermodyne. 4: Thermocline.
What is the primary cause
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