Final answer:
Bacterial absorption is not a way in which wetlands filter water.
Step-by-step explanation:
The correct answer is d. bacterial absorption.
Ponds, lakes, and wetlands can filter water in various ways, such as nutrient absorption, sediment trapping, and bacterial absorption. However, bacterial absorption is not a way in which wetlands filter water. Wetlands primarily filter water through
nutrient absorption
, where plants take up nutrients like nitrogen and phosphorus from the water. They also filter water through
sediment trapping
, where suspended particles, such as sediment and pollutants, settle out of the water column and are trapped by the wetland vegetation and soils. However, bacterial absorption refers to the process of bacteria taking up nutrients and organic matter from the water, and it is not a primary mechanism by which wetlands filter water.