Why might using biodegradable or phosphate-free cleaning products on board be recommended, beyond general good practice?

A. Biodegradable products have no functional difference from any other cleaning product

B. Grey water (sink and shower waste) from a boat is often discharged directly into the water without treatment — conventional detergents and phosphates entering the water this way can contribute to algal blooms and are more persistent and harmful to aquatic life than biodegradable, phosphate-free alternatives

C. This recommendation applies only to superyachts, never to small leisure craft

D. Grey water is always treated before discharge, so cleaning product choice makes no difference

A. Nothing — a test lift can proceed immediately after repairs

B. Testing should wait until cargo operations begin

C. The area within the grab's swing radius should be cleared of personnel before the lift

D. Only the crane operator needs to be aware the lift is happening

A. Who must remain clear of the exclusion zone while the lift takes place

B. The lunch schedule for the deck team

C. Only the weather forecast for the next watch

D. The cargo manifest for the next port