What can you conclude about fossil by looking at the layers of rock?
the exact age of the fossil
the fossils in the lower layers are older than the fossils in the upper layers.
there is no difference in age between the different layers of rock
the fossils in the upper layers are the ancestors of the fossils in the lower layers.

B. The fossils in the lower layers are older than the fossils in the upper layers. 

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )