Answer:
Scientists repeats the steps in cycle mode and in order to be sure about the results he/she chosen.
Seedlings And Xylem That’s The Answer
The answer is A. Fertilizer
The other answer choices don't make sense Herbicide is a poison that kills plants, Pesticide is an insect killer, while a Growth Hormone is designed to help the plant grow not to put nutrients into the soil.
Land heats slower and too lower tempetures then water i believe is correct
