As water moves slowly through a wetland, some waste materials settle out, some wastes are absorbed by plants, and silt and mud is trapped by plant roots. in this way, wetlands act as natural

a.
filters.
b.
habitats.
c.
tributaries.
d.
artesian wells

huy plzzz

filters

Explanation: Wetlands are the shallow lands that are either permanently or seasonally occupied with water. The water in the wetland comes from the river, lakes, ponds, oceans, melting glaciers and rainfall. The wetlands acts as a  natural filters of the waste materials. As some of the wastes like minerals are absorbed by the plants, silt and mud are trapped by the plant roots. All these instances prevents the waste materials being added up inside the water body hence, prevents it contamination.

a time line cause it goes from 685 to 978

the dark variety, as they are not visible on the dark tree barks

explanation: