Omar studies the effects of a drought on the depth of water in a pond. He takes a reading of the water depth at the same location in the pond every day for the duration of the drought. Which method of displaying data would he most likely use to show changes in water depth?

Omar records water depth every day, so the data show how one measurement changes over time. A line graph is well suited to showing trends over time, such as the pond getting shallower during the drought. The correct choice is a line graph.

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