4. looking at the map, which area would produce an air mass that causes cold and dry weather? r

answer:

a

explanation:

i know this because i used the above answer and got it wrong : /

i would select d. i hope this you : )

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: