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Physics, 04.12.2020 21:30 Ididntwanttomakethis

HI Four groups of corn are given different types of natural fertilizer: fish emulsion, worm castings, cow manure compost, and no fertilizer. The height of the corn is measured each week. What is the control group?

Fish emulsion
Worm casting
Cow manure compost
No fertilizer

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HI Four groups of corn are given different types of natural fertilizer: fish emulsion, worm casting...

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