How could floodwater runoff from the land negatively impact the biodiversity of the great barrier reef lagoon ecosystem?

Increase nutrient concentration

Explanation:

Flood water runoff can take with it material from areas occupied by industries and crops. These areas have a large amount of chemical and organic waste arising from the result of agricultural and industrial activities. In this way, when the floodwaters carry this type of wastewater and flow into an aquatic environment with the presence of coral reefs, it causes an increase of nutrient concentration in that environment. This causes negatively affects the aquatic environment, causes eutrophication and harms coral reefs.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

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