Final answer:
Not wearing a life jacket, operating under the influence of alcohol, and speeding in a no-wake zone are unsafe behaviors in a small open boat.
Step-by-step explanation:
An unsafe behavior when in a small open boat is not wearing a life jacket.
Life jackets are essential for safety on the water and can prevent drownings.
Another unsafe behavior is operating the boat under the influence of alcohol.
Alcohol impairs judgment and reaction time, increasing the risk of accidents.
Additionally, speeding in a no-wake zone is unsafe.
No-wake zones are designated to protect swimmers, kayakers, and other boaters, and speeding in these areas can put people at risk.
Using a fire extinguisher is not an unsafe behavior but rather a safety measure in case of a fire on board.