Define trawling, and explain the ecological damage associated with it.

Trawling is a method of fishing that involves pulling a fishing net through the water behind one or more boats. The net that is used for trawling is called a trawl.
Some ecological damages associated with trawling are ,the weight and width of a bottom trawl can destroy large areas of seafloor habitats that give marine species food and shelter. Such habitat destructions can leave the marine ecosystem permanently damaged.

I’d say a : water molecules

The littoral zone. . .