SDI Final Exam 65 Questions with 100% Correct Answers | Verified | Latest Update 2024

1. Objects under water appear 1: The same size as they do on land. 2: Twice as large as they do on land. 3: Closer and larger than they do on land. 4: Smaller and farther away than they do on land.: Closer and larger than they do on land. 2. As you descend: 1: Colors appear to fade. 2: Reds and oranges are among the first colors to disappear. 3: At 30 m/99 ft, little color remains other than blues, grays, blacks and whites. 4: All of the above.: All of the above. 3. Which of the following statements is true? There may be more than one correct answer. 1: Water is 400 times denser than air. 2: Water is 800 times denser than air. 3: Sound travels about four times faster underwater. 4: Both the second and the third answer are correct.: Both the second and the third answer are correct. 4. Which of the following is/are true? 1: Water conducts heat away from your body ten times faster than air does. 2: Water conducts heat away from your body 25 times faster than air does. 3: Fresh water conducts heat away from your body faster than salt water does. 4: Salt water conducts heat away from your body faster than fresh water does.: Water conducts heat away from your body 25 times faster than air does. 5. 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.: Thermocline.