A student conducted an experiment with two rose plants to determine if a liquid formula for fertilizer produced greater growth than a dry formula. After testing each fertilizer on two different plants for one month, his data led to the conclusion that the liquid formula was a better promoter of plant growth. When he described his conclusion to his teacher, she told him he needed to conduct additional trials. The teacher most likely asked for additional trials because

This question lacks options, the options are:

A) she did not believe the new formula helped plants grow better than the old formula.

B) it was necessary to see data from more plants before the conclusion could be accepted.

C) it was necessary to have tested the fertilizer on different kinds of plants.

D) she thought he should test additional fertilizer formulas on the same two plants.

The answer is B.

Explanation:

In an experiment, a TRIAL or RUN is refers to repetition of the experiment using the same procedure. A trial is done in order to ensure that the results of the experiment is not based on CHANCE but CERTAIN. It is important that before an experiment be accepted as valid, it must be able to be replicated severally.

In this case, a student conducted an experiment with two rose plants to determine if a liquid formula for fertilizer produced greater growth than a dry formula. However, after arriving at a conclusion based on his experimental results, his teacher told him he needed to conduct additional trials. This is because, according to the importance of trials above, IT WAS NECESSARY TO SEE DATA FROM PLANTS BEFORE THE CONCLUSION COULD BE ACCEPTED.

This, in essence, means the students need to repeat the test of the fertilizer formula on more rose plants.

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c. the initial amount of money placed in the savings account