What is a dependent variable?
Group of answer choices

A. Independent variables are only found on pie charts.

B. The variable that changes because another variable changes.

C. A variable most often found on the X-axis.

D. The variable the experimenter changes or manipulates.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.