Question

if a farmer tests four different amounts of fertilizer on corn plants to see which amount yields the most ears of corn, what is the independent variable? the different amounts of fertilizer neither of these is correct number of ears of corn produced

Explanation:

The independent variable is what the researcher manipulates. Here, the farmer is changing the amounts of fertilizer. The number of ears of corn is the dependent variable, which is affected by the fertilizer amount.

Answer:

the different amounts of fertilizer