A.becket bend B.clove hitch C.bowline D.square knot
A.Enough for 100 percent of the persons allowed on board B.One for each work station and industrial work site C.Enough for 150 percent of the persons allowed on board D.Both A and B above
A.more harmful to sea life than lighter oils B.easier to clean up than lighter refined oils C.less harmful to sea life than lighter oils D.not a real threat to marine life