sanction

affable

nematode

obligatory

succumb

metaphysical

conjunction

diarrhea

restructuring

inherent

filtration

marginal

dissent

purification

audacious

surrogacy

tenuous

prevalence

pedagogy

hydrophilic

preclude

labor-intensive

freshwater

inexorable

enigma

brackish water

aptitude

urban sprawl

hatch

euphoria

basin

feasible

insulate

leverage

undermine

wetland

avert

recur

slum

rustic