The oldest layers of rock will be at the bottom because as years go on things die and create new settlement that forces the older rock to move further down in to the ground
<span>There are 30-megawatt hours (MWh) per year of savings the students had identified for computers at the Penn State Mueller Laboratory Building. At Pennsylvania State University, an undergraduate class studied an environmental evaluation in one of their laboratory buildings in biology. They want to answer the question, "How is this building like an ecosystem?" Their evaluation result was a report that contains 52-page noting ways to lessen the Mueller Laboratory Building’s environmental footprint in terms of water, energy communications, maintenance, renovation, and food usage. The students establish techniques to save an almost $45,500 yearly in the energy cost alone for a building with 123 scientists and backing staff. </span>
Explanation:
It's a problem - a problem originates when a question is asked. In this case, we have come up with a problem that needs a solution:
1. - We'll experiment in order to come up with a hypothesis (a not-valid-yet answer of what the solution to our problem is).
2. - After a series of experiments that either prove or prove our hypothesis wrong, we'll be able to come up with a theory (a valid but still discussable final hypothesis of what the solution to our problem is).
Answer:
C. / 3 - Problem.
Hope it helped,
BioTeacher101
