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Ivan
18 days ago
14

Sarah performs an experiment to determine the effect of nitrogen on plants. She studies the effect of nitrogen on the growth of

the root of hair, height of the plants, and nodule formation. Which factor is an independent variable ?
Biology
2 answers:
enyata [2.5K]18 days ago
5 0

Response: Nitrogen

Clarification:

The independent variable is one that can be modified or changed by the experimenter to see its effect on the dependent or experimental variable.

In this scenario, nitrogen serves as the independent variable. Its impact can be assessed on the growth of hair roots, plant height, and nodule formation, which are all examples of dependent variables.        

11111nata11111 [2.5K]18 days ago
5 0

The key to your inquiry is the duration and its impact on each material, along with the understanding that nitrogen remains unchanged as it is an unalterable variable. Meanwhile, all other aspects, such as time, the substance under investigation, and the potential for nodule formation can vary without altering the fundamental nature of the experiment; otherwise, you would be dealing with a dependent variable. I hope this clarifies your question:-)

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