A contaminação da água pode ocorrer de várias maneiras, destacando-se a poluição por esgoto, metais pesados, agrotóxicos e fertilizantes. Sobre a contaminação realizada por microrganismos patogênicos, qual a fase no tratamento da água, é utilizada para sua eliminação? *
1 ponto
Imagem sem legenda
a) Desinfecção.
b) Floculação;
c) Filtração;
d) Coagulação.
Answers: 1
Biology, 22.06.2019 00:00, natalievick03
Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.
Answers: 1
Biology, 22.06.2019 10:00, tuetheturtle
The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a. an ionic bond is formed between the oxygen and carbon atoms. b. four valence electrons are shared. c. two valence electrons are shared. d. valence electrons are shared between oxygen atoms.
Answers: 1
Biology, 22.06.2019 12:40, sheilashair
Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.
Answers: 1
Biology, 22.06.2019 16:00, slmjmlawson
Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down
Answers: 1
A contaminação da água pode ocorrer de várias maneiras, destacando-se a poluição por esgoto, metais...
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