Geologists rely on the Rule of Superposition to determine the age of geological structures. This rule assumes that no significant event took place and so older rock layers are positioned below the newer ones, similar to a stack of dirty dishes, where the newer ones are added on top and the older ones are further below.
Nucleosynthesis is the answer
Wrap your specimen in the original wrapping and give it your instruct to dispose of
The answer is D. The natural selection is a theory which illustrates the gradual process of evolution in the population due to the change of environment. The key point is the mutation (variation) exists in the population before the environment changing. For C, if the environment does not change, though the adaptation is useful to environment, it will not be selected. Because the organisms without the adaptation will not die.