-Psychology studies the relationship between environments and human behaviour.
-Psychology studies the human psyche, behavior, and mental processes. This diverse field has roots in biology, medicine, philosophy, religion, and history.
-Solid state physics studies the processes taking place on surfaces and semi-conductors. -
-Theoretical physics above all examines the theory of quantum fields, gravitation and quantum information.
-Quantum mechanics studies the behavior of atoms and the particles that make them up.
It follows that the first bulleted sentence might be worded:
"- Psychology is the study of the relationship between environments and human behaviour. ",
and all the other sentences should be formulated around "...the study of..." to be considered correct. I don't see the big deal, though.
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