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composed of nonliving or inorganic matter

the process of changes in culture that result from the meeting of two groups, each of which retains distinct culture features

the process by which a group's cultural features are altered to resemble those of another more dominant group

the thin layer of gases surrounding Earth

the study of the psychological basis for individual human actions in space

all living organisms on Earth, including plants and animals, as well as microorganisms

composed of living organisms

the science of making maps

scientific research by amateur scientists

the long-term average weather condition at a particular location