Dear Phani Bhusan,

The physical quantities which govern our universe and more precisely our planet earth have the static and dynamic aspects such as Newton's law, Ohm's law, heat, thermodynamics ... For this reason we speak of phenomena which take place in our dynamic systems environment.

Best regards

I convey my respects sir.

Any system that has memory in which the current outputs (aka outcomes) are not mere results of the current inputs but also depend on past inputs and outputs is called a dynamic system. Nature is very well a dynamic system!