Question

justin wants to determine the effect of fertilizer on the growth of grass​

Answer 1

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Answer 2

Answer:

Nitrogen promotes healthy leaf growth by encouraging the production of chlorophyll, which is a chemical vital to photosynthesis. – Phosphorus helps your lawn develop healthy roots and stems. ... For your lawn, it is important to find a fertilizer with a high level of nitrogen. You want to promote and encourage growth!

Explanation:

didn't understand what you asked

but still hope it helps mark me as the brailest