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SDI Open Water Scuba Diver Exam 2024 Questions with 100% Correct Answers | Verified | Latest Update
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1. Objects under water appear ANS Closer and larger than they do on land 2. How much faster does sound travel in water, compared to air? ANS 4 times 3. Water conducts heat away from your body ANS 25 times faster than air does 4. As you descend ANS colors fade, reds and oranges fade first, 30 meters seem blue and gray 5. water temp does your body need thermal protection ANS 86 degrees 6. What does SCUBA mean ANS self-contained underwater breathing apparatus 7. When water stratifies itself into layers, according to temperature, the bound- ary between layers is known as a(n) 1 Halocline. 2 Ichtyocline. 3 Thermodyne. 4 Thermocline. ANS Thermocline 8. What is the primary cause of waves? ANS wind
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