Evolution is the process in all forms of life over generations and evolutionary occurs. Biological populations develop through genetic changes that correspond to changes in the organism observable traits.
Evolution indicates the forever evolving life on earth. Evolution assures the continuity of various species & organisms on earth.
The accumulation of variations over a period of time is evolution.
Example: In a field there are red and green beetle. The crows are flying over the field found red beetles in the field to be eaten which give green beetle an advantage over red beetles and more the proportions of green beetles in the population would be in the population will eventualy results in evolution of species to fit the environment better.
Thus, Evolution indicates the forever evolving life on the earth