What were the main pollutants that caused hazards to aquatic life?, discussion help

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-What were the main pollutants that caused hazards to aquatic life?
Currently there is a new threat to aquatic life, especially in lakes.
This new threat is micro-beads. Micro-beads are the small plastic
particles in many cosmetic products and toothpastes. Once these
particles are washed down the drain, they go through the plumbing
system, and end up in the environment, at the bottom of lakes and
rivers. Plastic has a long decomposition time-frame, and this causes
flat out pollution.

-How did these pollutants affect the health of aquatic life adversely?
The main hazard of these micro-beads occurs when aquatic life, mostly
fish, consume them by mistake. The particles get stuck in their
digestive systems, creating health issues, and even causing the fish to
starve and die. Another hazard is that when micro beads coat the body’s
of water depths, they impede the growth of aquatic vegetation.

-What are the various ways to prevent occurrences of such episodes in
the future? Explain how these ways will help in the prevention of such
episodes.
Prevention of such pollution is quite easy. Halting the production of
micro-beads in cosmetic products is a great step in the process. The
second step should be to clean up the already expelled micro-beads. This
step, however is very difficult because they settle at the bottom of
lakes and cannot be reached. There is also a lack of technology to
gather masses of such small particles without damaging the environment
further.

-Discuss the association between environmental pollution and hazards to aquatic life.
Pollution hurts aquatic life in many ways. The water cycle is an
important aspect of why this pollution occurs and hurts the aquatic
environment. Rain and runoff carries much of the debris, trash, and
waste humans make down to bodies of water. Here the filth all settles
and takes a long time to decompose. Depending on what the pollution is
specifically, like oil, or plastic candy wrappers, the environment is
affected in different ways. In the case of micro-beads, it hurts the
underwater vegetation by “choking’ it. It also hurts animals and fish if
they consume it, since it is not edible.

Microbeads, an environmental hazard. (2015). CTV National News – CTV Television