Answer - The main problem caused by water pollution is the effect it has on aquatic life . Such as Dead fish, birds, dolphins, and many other animals often wind up on beaches, killed by pollutants in their habitat .Pollution disrupts the natural food chain as well . This is my opinion because most likely Dead fish and other animals do wind up on beaches and that can cause pollution
There are many fish and other large marine animals in the light zone becuse plankton (a main foodsource for many fish) is able to grow.
False, mass number is protons plus neutrons. not subtraction.
