A dependent variable: O A. is what the researcher changes.
O B. is dependent on the independent variable.
OC. is what happens first in an experiment.
O D. is stated at the beginning of an experiment.
SUBMI

B. is dependent on the independent variable.

Explanation:

The independent variable is what the researcher changes. The "dependent variable" relies on the "independent variable." For example, the amount of water given to a plant is an independent variable. It is used to determine the size of the plant and the number of leaves, which both stand as dependent variables. Remember that every experiment is limited to only one independent variable.

The other type of variable is the "controlled variable." This is the variable that is not changed and remains constant in the experiment. For example, the type of plant used or the type of soil used.

well when looking at this if you think about it   negativley and positivley   react with each other and when the first layer gets full they add layers it starts with 2 on the first layer and it constantly goes on until the official number is there