suppose you're given a piece of a material that is painted black so you cannot tell its normal appearance. Working in groups of three, plant tests you would do on the material to decide whether it is metal, glass, plastic, or wood

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.