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Caitlin wants to determine if a tomato plant grows better in potting soil or dirt. Which of the following describes the best set up to conduct this type of investigation?

2 pots of the same size: one with 1 pound of potting soil, one with 2 pounds of dirt, 2 tomato plants of the same size and type
2 pots of different sizes: one with 2 pounds of potting soil, one with 2 pounds of dirt, 2 tomato plants of the same size and type
2 pots of the same size: one with 2 pounds of potting soil, one with 2 pounds of dirt, 2 tomato plants of the same size and type
2 pots of the same size: one with 2 pounds of potting soil, one with 2 pounds of dirt, 2 tomato plants of different sizes and the same type

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kassiedodson
The answer with the 2 pots of the same size: one with 2 pounds of potting soil, one with 2 pounds of dirt, 2 tomato plants of different sizes and the same type

Experimental designs are set to perform the research and reach a conclusion. Caitlin should take two tomato plants of the same size and type then plant them in a pot of 2 pounds each of dirt and soil. Thus, option C is correct.

What is an experimental design?

An experimental design is a methodology that enables the person to perform the research in an objective-oriented manner so as to conclude the hypothesis statement.

Caitlin wanted to know about the effect of the soil and dirt on the growth of the tomato plant and hence for that, she should use two tomato plants of the same type and size as height is the determining factor.

She should plant the two tomato plants with the same height in two plants that have the same amount (2 pounds) of dirt and soil in each to check for their effect at the end of the experiment.

Therefore, option C. two tomato plants must be planted in a 2-pound pot of dirt and soil.

Learn more about experimental design here:

https://brainly.com/question/28145500

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