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(The subject is Earth Science)
Suppose you want to find out whether doubling
the amount of potassium in a soil will increase
the yield of tomato plants. Describe how you
would test this hypothesis. What would be your
variables? What would you use as a control?



Answer :

annyksl

To test these hypotheses you would need to set up an experiment with tomato plants and the amount of potassium applied to the soil.

Based on this, we can state that

  • The dependent variable would be the yield of tomato plants.
  • The independent variable would be the amount of potassium applied to the soil.
  • The control would be a group of plants with soil without potassium.

How would this experiment be set up?

You would need a minimum of 15 tomato seedlings that would be planted in equal pots with the same type of soil. These plants would be watered with the same amount of water at the same time and stored in the same location.

You would divide the plants into three groups. The first group would receive the normal amount of potassium in their soil. The second group would receive double the amount of potassium in their soil and the third group would receive no amount of potassium in their soil.

You would determine the number of days (90 days minimum) and describe the changes taking place in each plant in each group and then compare the results from each group to conclude how the amount of potassium affected the plant's yield.

Learn more about dependent and independent variables:

https://brainly.com/question/3764906

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