QUESTIONS AND ANSWERS VERIFIED
RESULTS
●● absorption.
Answer: The taking up of one substance into the body of another
●● acidic.
Answer: a solution with a pH less than 7
●● appurtenances.
Answer: machinery, appliances or structures attached to a main structure
that are necessary to allow it to operate as intended, but not considered
part of the main structure.
●● activated sludge.
Answer: sludge produced in raw or settled wastewater by the growth of
bacteria and other organisms in the presence of dissolved oxygen and
accumulated in sufficient concentration by returning sludge previously
formed.
●● autotrophic.