The answer is <span>B. The type of fertilizer.</span>
<span>An independent variable is variable that is not affected in the
experiment. It is what experimenter controls. On the other side, a dependent
variable is called dependent because it depends on the independent variables.
It is what is affected during the experiment.
In this case, the growth of pea plants depends on different types of
fertilizer. So, the growth of pea plants is the dependent variable and different
type of fertilizer is the independent variable.</span>
The answer is Observation. That's the first step.
Genetic engineering is a big part of agriculture. that would be your answer
