What is an advantage of the scientific method?

Which action is characterized of mental illness 1.brushing teeth every hour because ones mouth feels dirty ? 2. forgetting to eat breakfast on a busy day? 3.crying three days over a relationship breakup? 4.feeling embarrassed about going to school after failing in front of friends?

How could natural selection best be used to explain the evolution of the white fur of arctic fox

In 2009, 40% of all bicyclist fatalities occurred when the bicyclist, the driver, or both vehicle operators were