It takes 1000 years for deep waters that sink in the North Atlantic to emerge in the North Pacific. Why do waters sink in the North Atlantic? How do we know it takes 1000 years for this loop to be completed?

What function does a limb serve in each animal how are the limb bones of the four animal similar based on the similarities what can be inferred about the evolution of the poor animals

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

9. the history of life on earth is recorded in