Unil test
active
which are causes of mechanical weathering? check all that apply.
acid rain
nplant growth
animal actions
carbon dioxide
pressure release

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:

i think the answer is c hope this