Each element is defined by its atomic number. Indicate whether ...

[AEWBW]

Each element is defined by its atomic number.
 
  Indicate whether the statement is true or false

Question 2

Which of the following statements about natural waters is untrue?
 
  A) The microorganisms in fresh water are harmful.
  B) Microorganisms help replenish the nutrients in the water.
  C) Aerobic bacteria only decompose organic matter in the presence of oxygen.
  D) all of the above
  E) only A and B

[carolinefletcherr]

Answer to Question 1

TRUE

Answer to Question 2

A