Question

After reviewing the results of your science fair project, you state that water has increased the growth of fungi. This is a(n)

Answer 1

If you're talking about the experiment; conclusion.
but if you're referring to the fungi; bacteria.

Answer 2

Answer:

inference

Explanation:

An inference refers to the deduction of a reasonable conclusion from an experiment. An inference is drawn based on a logical premise.  

The researcher in this study , reaching to such an inference must have observed and noted the fungi growth with the application of water for several days thereby controlling other variables (growth factor) . Since his/her finding is based on observation and research, this statement "water has increased the growth of fungi" can be considered as an inference.