Answer: Model
Explanation:
Models are able to break down complex processes into the most important parts so that the process can be repeated over and over again with just those important parts.
Models are very important and useful to the advancement of life as we know it because they help us repeat processes that are needed to push development forward in just about every field and industry.
The answer would be D because it says Which is NOT a major factor, and a mountain barrier has nothing to do with climate, or how it changes, while latitude, regions, and ocean currents could be factors.
The river had been called <span>"river of sorrows" due to its constant flooding during its earlier civilizations. </span>
Many people decided to move from more rural areas that offered land and space for farming to cities that had factories and offered job opportunities
