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joe sowed seeds of a plant in two different types of soil in separate pots. she added the same amount of fertilizer to the pots. she then placed the pots in the sun and recorded their growth after four days. what is the independent variable in the study?

duration of growth

amount of fertilizer

growth of seeds

type of soil

Amount of Fertilizer

The answer you are looking for is Amount of Fertilizer. Hope this helped and have a great day. :D

Explanation:

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne