Which of the following is true concerning hull fouling from commercial shipping and recreational boating?
a.
it constitutes less than half of all nonnative species introductions.
b.
the revenue brought in from these industries is relatively small.
c.
it is difficult to prevent since ship hulls begin, conduct, and end voyages in water.
d.
it is best combated by chemical treatments.

Answer;

It is difficult to prevent since ship hulls begin, conduct, and end voyages in water.

Explanation;

-Hull fouling refers to the way organisms can attach themselves to the hull of a ship during a voyage and transport themselves long distances this way.

-Aquatic plants for example, are easily transported when plant fragments get tangled on boat propellers and fishing gear of recreational boats.

-Concerning hull fouling from commercial shipping and recreational boating, it is difficult to prevent since ship hulls begin, conduct, and end voyages in water.

The correct answer is option C

Hull fouling can be defined as the unintentional transfer of species that gets attached to the the ships during a voyage and gets transferred to long distances.

Aquatic animals for example are easily transported when plant fragments gets tangled on the boat propellers and fishing gear of recreational boats.

the answer would be   10%