Which is true of oxidation?
a) It is a physical process
b) No change occurs in the makeup of rock
c) Rocks weather at different rates
d) Water freezes in cracks in rock

I would say a

Explanation:

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.