The diagram below shows the layers of rock that make up the Grand Canyon. What does the law of superposition say about how the Grand Canyon has changed over time? A. The Grand Canyon was once underwater because the newest rocks are found at the bottom-most layers.
B. The Grand Canyon divided into layers of different rocks because of cracks that arose from volcanic eruptions.
C. The Kaibab Limestone used to be underground but was elevated as the layer pushed upward through Earth’s crust.
D. The top layer may once have been Redwall Limestone, but over time sediment continued to build up and now Kaibab Limestone is the top layer.

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience.b. report the adverse drug experience to the irb only if there are several other occurrences.c. report the adverse drug experience as part of the continuing review report.d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.

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Check the following equation for dimensional homogeneity: ⅆ mv=∫t1t2(f⁢cosθ)ⅆt where m is mass, v is velocity, f is force, θ is an angle, and t is time. check that each term in the equation has the following dimensions: [malbec] where you are to choose the coefficients a, b, c.