The depth in a multilayer rock formation with the oldest rock most likely to be found in the igneous rock because almost anywhere is where the volcanoes have formed the earth.
Cellular proteostasis (portmanteau of the words protein and homeostasis) is the key to ensuring successful development, healthy aging, resistance to environmental stresses and to minimize homeostasis perturbations by pathogens such as viruses. Having said so, disruption in protein homeostasis overtime can cause cellular injury.
W. X. Y. Z = (1/2)(1/2)(1/2)(1/2)
= 1/16
or
= 0.0625