Which of the following best describes Earth's orbital position in our solar system?

A. Outside of the gas giants
B. An inner planet
C. An outer planet
D. Outside of three smaller planets

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: