Which benefits do mangrove trees provide to surrounding coastal wetlands? 1 . They hold soil in place.
2 . They store floodwaters.
3 . They maintain surface water flow.
4 . They filter water and improve water quality.

it is 1 and 4. if its a one choice question it is most likely 1

Explanation:

trees dont usually filter the water. they take in the water through their roots. trees usually hold soil in place. it cant be 2 or 3 because they dont make sense.