How much do you know about scuba diving?
Underwater things look....
Closer and 25% larger
Farther and 20% smaller
Closer and 40% larger
Water reduces body heat...
10 times faster than air
15 times faster than air
25 times faster than air
What is the first colour to be absorbed under water?
Red
Blue
Green
If you lose your buddy while diving, how long do you have to search for him before surfacing?
1 minute
3 minutes
5 minutes
When you dive to 30m, the hydrostatic pressure is :
2 Bars
3 Bars
4 Bars
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