Explain why physical appearance or morphology is not always useful for identifying organisms belonging to the same species

Ausable water source is one that can be used by humans for drinking or agriculture. identify the water reservoirs as usable or unusable based on their current state. oceans rivers glaciers freshwater lakes groundwater

Regarding most of the narrator’s story, which word best describes the tone?

Explain how scientists use geologic time to determine the age of landforms.