Which of the following is the single largest component of a typical soil?
air
moisture
minerals
organic material

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

What is the name for a substance formed in a chemical reaction

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