sanction

nematode

affable

obligatory

metaphysical

conjunction

diarrhea

succumb

marginal

inherent

restructuring

filtration

purification

audacious

surrogacy

dissent

hydrophilic

pedagogy

tenuous

prevalence

labor-intensive

preclude

freshwater

inexorable

urban sprawl

aptitude

enigma

brackish water

euphoria

hatch

feasible

basin

undermine

wetland

insulate

leverage

recur

avert

slum

rustic