Boating Coach
Environment and securityQuestion 412 of 566

Why can a boat that was not cleaned and dried spread Zebra Mussels?

  1. They only live on the propeller
  2. Their larvae are tiny, hard to spot and can stay alive
  3. They die at once in the open air
  4. They cannot move over land
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Correct answer: Their larvae are tiny, hard to spot and can stay alive

Larvae can survive on a wet or unclean boat, trailer or equipment.

Source: Safe Boating Guide (TP 511E, 2026), Help keep out invaders, page 56

All questionsPractice the topic "Environment and security"

Questions last reviewed: 18 October 2026