Living beings have evolved after a very long time on earth's evolution.why??? ??

Living beings have evolved over time through a process of natural selection, where individuals with advantageous traits are more likely to survive and reproduce, passing on those traits to future generations. This process allows species to adapt to their environments and increase their chances of survival. Evolution is driven by various factors such as changes in the environment, competition for resources, and genetic mutations. Over millions of years, this process has led to the diversity of life forms we see on Earth today.