Guys i need asa 45 pointss!

which of the following could be a method used to order geological events? (3 points)

select one:
a. calculating the rate of weathering and erosion of rocks
b. comparing the minerals present in different strata of rock
c. calculating the radioactive decay rates on all known elements
d. using relative and absolute dating to find age of objects from the past

Suppose a particular species of tulip plant has three alleles for the gene that codes for flower color. the cr allele produces red tulips, the cp allele produces purple tulips, and the cw allele produces white tulips. cr is dominant over cp and cw, and cp is dominant over cw. for each of the following crosses, determine the expected ratio of offspring for each flower color. cr cp x cp cw cr cw x cp cw 1 red: 1 purple : 0 white, 1 red: 2 purple: 1 white, 2 red: 1 purple 1 white, 1 red: 3 purple : 0 white, 2 red: 0 purple : 2 white, 2 red: 2 purple : 0 white