Answer:
a.)
Explanation:
The dense cold salty water from the south sinks to the bottom of the ocean.
A scientific model is a claim or a theory that helps explain how a phenomenon works or how it undergoes process. This models provides scientists an understanding of the object or a situation undergoes change and generate certain outcomes or effects.
Basically, the law states that an object at rest stays at rest and an object continues its state of motion until an external force acts on it. For example, a ball rolling down a hill will continue to roll unless friction or another force stops it.
Answer:
The precambrian would finish in mid-november, the paleozoic would end in mid-december, humans would show up at the end of December.
Explanation:
The precambrian period is the longest period in terms of earth's formation and development of several species. The paleozoic (belongs to the cambrian period) is a continuation of the previous era with other species that devedloped in the seas. Human evolution is actually short and brief in terms of prehistoric geological registry, as humans appeared much more towards the end in earth's prehistoric registry (the end of the cenozoic).
