The nature–nurture issue refers to the debate over the relative contributions that make to the development of psychological traits. a. introspection and nerve cell activity b. unconscious and conscious motives c. behavior and mental processes d. genes and experience

The nature–nurture issue refers to the debate over the relative contributions that D). genes and experience make to the development of psychological traits. The nature-nurture debate is a debate on whether the behavior of a human is based on the environment, or by a person's genes. The word "nature" in nature-nurture represents your genes, while nurture represents your childhood and how you grew up.

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.