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eduard
3 years ago
7

Find 4 human-related threats to seagrasses. Describe them fully.

Biology
1 answer:
emmasim [6.3K]3 years ago
4 0
<span>The 4-human related threats to seagrasses are caused mostly by human development. The most common are: Excessive dredging, careless boating, chemical waste in the sewers, and garbage.<span>

a. Excessive dredging due to the accommodation of building houses or other facilities that need proper sewage disposal has caused the destruction of many seagrasses and mangrove communities in the United States. 

b. Careless boating by boaters in the area who are not familiar with the local waters destroy the seagrasses with their propellers. To further prevent destruction, they are encouraged by the local government to familiarize themselves with the area and prevent boating in shallow waters where seagrasses are found.

<span>c. Chemicals found in the sewage system that leak cause the growth of excessive algae and bacteria. When this happens, they cover the surface area of the water causing little to no sunlight to appear underwater and reach the seagrasses. When this happens, seagrasses lack the capacity to produce oxygen through photosynthesis. Not only does this affect seagrasses but also marine life, when algae and bacteria build up they suck the oxygen that is necessary for the survival of various marine animals. </span>

<span>d. Garbage that decompose in land or in water produce poisonous chemicals that are also a threat not only to seagrasses but also to other marine life. </span></span></span>
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