In order to determine if you are using the proper amount of sanitizer in a solution, it is best to check it with the use of test strips or with concentration techniques that will help you in determining if you have the proper amount. It is also best to change if often in order to have the best result and correct or reliable amount.
I think the answer you are looking for is tobacco
I believe the answer to your question will be A)
Answer:
The Answer should be C. observational :):)
Explanation:
