Found in darwin's origin of species, this suggests that species adapt and change by natural selection and the changes aid in the survival of the organism.

According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.