Question

which is one benefit that mangrove trees provide to surrounding coastal wetlands?
o they hold soil in place.
o. they store floodwaters.
o they maintain surface water flow.
o. they filter water and improve water quality.

Explanation:

Mangrove trees have extensive root systems. These roots can bind to the soil particles. As a result, they prevent the soil from being easily eroded by waves, tides, or other coastal forces. So, they hold the soil in place. Storing floodwaters is more of a function of some types of wetlands or flood - control infrastructure rather than a main and unique benefit of mangrove trees. Maintaining surface water flow is not a key benefit that mangroves are known for in the context of their role in coastal wetlands. While some plants can have a minor impact on water quality, the most prominent and well - known benefit of mangrove trees in coastal wetlands among the options is their ability to hold soil in place.

Answer:

They hold soil in place.