The interaction between seagrass and its environment impacts its distribution and abundance. what do you predict are three abiotic causes of declines in seagrass communities?

I think the answer is Industrial and agricultural runoff, coastal infrastructure development, and dredging

Abiotic factor is made of non-living factors. That means all factor that involves living creature such as predation, overfishing, plant reproduction or overpopulation should not be included in it. Those three factors above should be an abiotic factor because it was not involving living organism.