Can you infer why p waves travel faster through the upper mantle
than they do through the crust?

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:

c is the answer to this question. altitude affects the weather because air molecules evaporate.