What is the most likely reason for this decline in aquatic species in virginia's southern watershed? a) weathering and erosion b) erosion and public policy c) overfishing and habitat loss d) public policy and global warming

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: