Answer:
In the given question, the options are missing which I found from another source. These are
Correct answer is: Increasing runoff
Explanation:
Wetlands are ecological systems that performs multiple funcitons necessary for the ecosystem functioning. Typically, wetlands are composed of two biological entities namely plants and bacteria. Together, both plants and bacteria help each and degrade pollutants present in the water. Therefore, absorbing and removing pollutants from water is a function of a typical wetland
Further, in a wetland environment, oxygen supply is limited which results into the production of methane gas by the biological activities of wetland communities (anaerobic respiration). This mehane is trapped in the water thus wetlands acts as a sink of carbon and their absence would release the carbon to the atmosphere. Therefore, trapping carbon is another function of wetlands.
Lastly, wetlands acts as buffers against flooding because plant roots slows the water flow. By contrast, wetlands cannot increase the runoff rather decrease. Hence 1st option is incorrect and is not the function of wetlands.