The experiment is the procedure performed to prove a hypothesis. The researchers perform an experiment, which can provide data to prove, if the hypothesis suggested is true or not.
After conduction of the experiment several times, the researchers collect all the data and organize it. After organization of the data properly, they analyze the data collected, so that they can formulate, if the hypothesis is true or not.
Hence, the given blank can be filled with Analyze.
I thinking like its 2,4,5
A:air
because the flag would on blow if it had some kind of wind
Because we have smelled them so long we are used to them
