Light is said to have a dual nature, meaning it can be thought of in two different ways. These two ways are .

The symbols found on the map below indicate where fossils have been found in the same layer of sediment. each unique symbol represents fossil locations of a particular species.

Ed participated in a psychology experiment in which he turned pegs on a board for one hour. although the task was very boring, the experimenter said, "i will pay you $1 if you tell the next participant that this experiment is the most exciting experiment that you have ever been in." julie also participated in the same experiment; however, the experimenter offered to pay her $50 to lie to the next participant. according to cognitive dissonance theory, ed will later report that experiment was and julie will report that it was a. boring; exciting b. exciting; boring c. exciting; exciting d. boring; boring

How was sacagawea to the lewis and clark during their expedition