What is the definition of amount of space an object takes up

How could natural selection best be used to explain the evolution of the white fur of arctic fox

Which food preservation method can people use at home? a. fermentation b. irradiation c. pasteurization d. thermal processing

“an abused child's thoughts occasionally drift to other, less anxiety-arousing topics; this anxiety reduction thus serves to strengthen 'other' thoughts, while weakening the thoughts about abuse.” a psychologist with which theoretical background would be most likely to offer this quotation as an explanation for the development of dissociative disorders?