The process of change in a population over time is

micro evolution

Explanation:

Changes within a gene pool occurring from generation to generation is called micro evolution. Allele frequencies in a population may change due to gene flow, genetic drift, natural selection and mutation. These are referred to as the four fundamental forces of evolution.

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

it breaks and dirupture other materials and other sencews from the bottom