Question

Chet plans an experimental investigation to see how well a new fertilizer works on daisies. The fertilizer must be dissolved in water and delivered to the plants by spraying it onto the leaves and stems.

To set up his control group for the experiment, Chet should leave out the

air.
water.
daisies.
fertilizer.

Answer 1

the answer is D fertilizer

Step-by-step explanation:

Answer 2

Answer: the answer is D fertilizer