Explanation:
the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
Answer:
not d, a seems too out of reach, I'd say c or b
The super continent like pangea drifted apart.
i hope this helps you.
Social psychology
This article is about the mind in a social setting. For other uses, see Social psychology (disambiguation). In psychology, social psychology is the scientific i think