Ann propped up a graham cracker in a shallow bowl. She then set up an electric fan to blow on the graham cracker at three different speeds. What is
Ann's dependent variable in this experiment?

Explanation:

The speed of the fan is the example of the independent variable. The effect of which can be observed on the weight of the cracker crumbs produced due to the effect of the blow. Therefore, the weight of the cracker crumbs produced is the dependent variable of the experiment.

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in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: