If an unconformity exists between these two layers of fossils, which statement is true? A. It could be hard to reconstruct the habitat that existed between the times when the fossils in each layer lived.
B. Some of the fossils in the lower layer might be the same age as some of the fossils in the upper layer.
C. The organisms fossilized in both the top and bottom layers lived in the same habitat.
D. The fossils in the top layer are older than those in the bottom layer.

The graph shows excess demand. which needs to happen in order to stop disequilibrium from occurring? q needs to be coordinated with supply. q needs to be coordinated with demand. the price of goods needs to be increased. the price of goods needs to be decreased.

Where did the constitutional convention take place

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?