All except for C. And it's good for the environment.
A) the independent variable is the variable that doesn’t rely on another variable. For this question the independent would be the days.
b) the dependent variable is the number of bacteria
c) ‘Number of bacteria across a number of days’
Answer:
First one is: ammonia
Second one is: calcium hydroxide
Explanation:
i think helium hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
