29-30. What are two factors that affect what eye color someone has beside just the genes?

What element is able to combine with itself and hydrogen to form large molecules ?

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

Are the layers of rock above and below the coal older or younger?