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

Name the hydrocarbon...i need help
If f(x) = 1/9x - 2 what is f^1(x)
The flesh of infants may be used as gloves and summer boots • Swift objects to eating girls as old as 14 because they would serve better as breeders, and becaus
(Please!!!) Which of the following is not an example of kinetic energy? (2 points) sound chemical energy radiant energy heat
Exotoxins are Question 8 options: only released after a cell is damaged or lysed. proteins. lipopolysaccharides. secretions that always target nervous
1. Which is an example of a law that discriminates against women that has been upheld by the Supreme Court? A women's pay B women's suffrage C registering for t
Show all work for 135 points (90 points + brainliest = 135 pts)
If a gas is initially at a pressure of nine ATM and a volume at 21 L at a temperature of 253K and the pressure is raise to 15 ATM and the temperature is raised
In a potentiometer circuit a 1m long potentiometer PQ of resistance 10ohms is connected in series with a cell of e.m.f 9v with internal resistance 3 ohms calcul
Jacob is reading a great thriller. The table shows a proportional relationship between the number of pages he reads and the number of hours he spends each week