Which is true of ONLY informational texts? It follows a plot/narrative arc, beginning with background and ending with a
resolution.
It avoids technical or specialized language in order to be accessible to all
readers.
It includes text features such as charts, graphs and bullet points to help the
reader fully grasp the central idea.

demonstrative is te word i think

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explanation:

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a constant variable, normally called a controlled variable, is the term for a variable that remains constant throughout an experiment, though other variables may change. an example is the water pressure for a faucet when measuring the amount of water released when the faucet is opened to various increments.