Answer: during the youngest layer
Explanation: the fossil is at the top
HYDRAULIC fracturing, or fracking, is a drilling method used to extract petroleum (oil) or natural gas from deep in the earth. In the fracking process, cracks in and below the earth surface are opened and widened by injecting water, chemicals, and sand at high pressure. Hope this helps you.
El Niño is a natural event that periodically weakens the
western surface of ocean currents in the equatorial pacific ocean. In an El Niño,
the wind that pushes water around (which keeps the east warm and west cold)
gets weaker making the ocean warmer, changing the air temperature and precipitation patterns in the United States.
History was a driving force behind such migration, since humans tended to move to new territory when they lacked food, shelter, or other resources--meaning that most of the conflicts throughout history have been driven by the same forces that drove migration out of Africa.
