Is there water in mars or in the moon

What percentage of light hits earth's surface directly?

Why do we perceive objects as retaining their brightness under different lighting levels?

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