Which of the following is not considered a natural science?
a. chemistry
b. psychology
c. biology
d. physics

B. Psychology is the science of behavior and mind, embracing all aspects of conscious and unconscious experience as well as thought. It is an academic discipline and a social science which seeks to understand individuals and groups by establishing general principles and researching specific cases.In this field, a professional practitioner or researcher is called a psychologist and can be classified as a social, behavioral, or cognitive scientist. Psychologists attempt to understand the role of mental functions in individual and social behavior.

Hello! the correct answer should be B) psychology, Hope this helps!

Covalent bond is the correct answer