Answer:
Answer is data.
Step-by-step explanation:
Data can be explained as a fact ,pieces of information ,or collection and analysis of facts through or from which we can draw a conclusion.
In this case , the information gathered for the two weeks of observing the growth of the plant , will help to know if the plant is growing well or not, the rate at which it's growing, and what is needed to apply if there is a need for it. This information can be represented statistically for easy understanding.