What causes the youngest rock layers to be on top a sedimentation b folding

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied