A geologist finds fossils in rocks that are older than the fossils and rocks of each layer beneath them what causes this situation a. uplift
b. overturning of sedimentary rocks
c. intrusion of igneous rocks
d. seafloor spreading
e. subduction
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Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

Gymnast always perform on padded mats. how does the mats protect the gymnast

What natural processes produce large quantities of co2