Moisturizing dry inhaled air
Saltwater absorbing moisture from the skin
The extreme amount of energy expended during a dive
Arterial gas embolism
All of the above
Carbon dioxide excess
A clear thought process
Impairment of thought
The inability to sense pleasure
Increased precision in motor skill function
Slightly faster and shallower than you normally breathe
The same as you normally breathe
Slightly slower and shallower than you normally breathe
Slightly slower and deeper than you normally breathe
Bright, red skin
Decreased body core temperature
Increases the level of carbon monoxide in the blood.
Increases tolerance for exercise.
Lowers of the number of beats per minute of the heart.
Provides greater resistance to decompression sickness.
Breathe 100 percent oxygen during scuba dives.
Breathe compressed air only.
Breathe normally at all times during ascent and never hold his/her breath.
90 feet per minute
30 feet per minute
70 feet per minute
60 feet per minute
Ripple marks in the sand.
Sun brightness/available light.
All of the above.
A feeder current
A rip current
The Gulf Stream
A thermal zone
A reverse thermocline
Having your buoyancy compensator partially inflated for slight positive buoyancy.
Being fully equipped.
Getting as close to the water’s edge as possible after timing the sets and lulls to match your entry with the smallest waves.
Entering the water as slowly as possible immediately after a wave breaks, getting beyond the surf zone quickly, before the next wave breaks.
The application of a stinging neutralizing agent.
Applying a tourniquet.
Wrapping the injured site tightly with a bandage.
To do nothing.
Add air to your buoyancy device
Let air out of your buoyancy device
Add weight to your weight belt