minessieamaridi minessieamaridi
  • 26-01-2017
  • Health
contestada

Secondary treatment uses _______ to clean the water.
a. chemicals
b. microorganisms
c. screens
d. skimmers

Respuesta :

redhead0507
redhead0507 redhead0507
  • 01-02-2017
the correct answer is B. microorganisms 

Answer Link

Otras preguntas

find the cube root of 740
Which of the following elements is not necessary to prevent value conflicts in the work place? A. ToleranceB. ConsiderationC. AvoidanceD. Honest communication
Which of the following best describes the difference between a mixture and a pure substance?
Two fifths the cube of a number
what is the factor of both x^2 - x - 6 and x^2 - 5x + 6 ? please explain .
What's 32xy divided by 24yz and how do you figure it out.  The question also asks me to write it as a fraction then cancel (or reduce).
what is 6/10 as a terminating decimal?
Find k such that x² + (k + 1)x + k + 4 = 0
write the equation a. a vertical line that passes through the point (2,-6)b. the y axis c.  a horizontal line that passes through the point (1,4)d. the x axis
Identify two powers the US Constitution prohibits the states from having.