Question

3. Mario is planning to conduct an experiment to determine which disinfectant is best for killing bacteria that are often found in kitchens.

Which of the following would be the most logical dependent variable for his experiment?
A. type of disinfectant
B. source of bacteria
C. amount of disinfectant
D. number of bacteria that survived using the disinfectant

Answer 1

I would say D

Step-by-step explanation:

The dependent variable is the thing that is measured when the independent variable is changed by us.

The independent variable would be the type of disinfectant so after you use the disinfectant you would measure the amount of bacteria meaning the answer would be D