( ( In-depth studies ) ( ( include ( ( ( ( ( ( hydrosphere , ) ( population dynamics ) ) , ) ( evolution ( ( theory and ) motion ) ) ) and ) forces ) ) . ) )
(ROOT (S (NP (NNP In-depth) (NNS studies)) (VP (VBP include) (NP (NP (NN hydrosphere)) (, ,) (NP (NN population) (NNS dynamics)) (, ,) (NP (NN evolution) (NN theory) (CC and) (NN motion)) (CC and) (NP (NNS forces)))) (. .)))
In-depth studies include hydrosphere, population dynamics, evolution theory and motion and forces.
(ROOT (S (NP (NNP Dynamics)) (VP (VBZ is) (NP (NP (DT the) (NN study)) (PP (IN of) (SBAR (WHADVP (WRB how)) (S (NP (NNS forces)) (VP (VBP affect) (NP (NP (DT the) (NN motion)) (PP (IN of) (NP (NNS objects)))))))))) (. .)))
Dynamics is the study of how forces affect the motion of objects.