Eva is performing an experiment to determine which type of disinfectant kills the most bacteria. She has six plates of the same

Question

3 years ago

11

Eva is performing an experiment to determine which type of disinfectant kills the most bacteria. She has six plates of the same

kind and amount of bacteria. She adds one of five different kinds of disinfectant to each plate and leaves one plate without any disinfectant as a control.
What role does the independent variable play in this experiment
A.
The type of disinfectant determines the amount of bacteria killed.
B.
The amount of bacteria killed determines the type of bacteria used.
C.
The type of disinfectant used determines the type of bacteria used.
D.
The amount of bacteria killed determines the type of disinfectant used.

Chemistry

2 answers:

Soloha48 [4] · Answer 1 · 2022-05-04T06:31:08+03:00

Soloha48 [4]3 years ago

6 0

A is the one so she could spot the differnece with natural and the unnatrual decline

Flura [38] · Answer 2 · 2022-05-04T08:21:20+03:00

Flura [38]3 years ago

5 0

Answer:

A

Explanation:

I did it just now