Describe the process of genetic evolution through gene pools, genetic drift and mutations.

Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.

Seawall

Explanation:

A seawall is a structure that is built so that it can serve as a form of defense for the coast against disasters such as erosion due flooding, high tidal waves, tsunamis and severe storms.

A seawall serves as a form of separation between the land and the sea. It helps to protect humans and their houses from destruction.

A seawall is constructed using concrete, steel or wooden materials. It is built parallel to the shore. It can be shaped in the form of a slope or a block.