Difference between dynamic and static memory?

dynamic is the study of motin,while static is at rest

it means that the memory which is used at motin time as by usic calloc,mallaoc,free function ,on the other hand static is the memory which only used at compile time

or at the time of work

in during progrmming,static memory has drawback ,the drawback is that in this memory ware unable to use the excess memory as we allocate already

to cover or improvre this type of problem we use dynamic memory allocation.