Answer:
An environmental reason would a natural disaster like an earthquake or flood
Explanation:
Answer: B. Human systems
Explanation:
Human systems in geography refers to the relationships that humans have between themselves and the environment. They include things like political boundaries, governance, citizen welfare and trade.
Migration and Interdependence refer to how humans move from one place to another and how they depend on each other for survival. This falls under human systems as it describes humans and their movements with each other to settle in other areas and mix with other humans where in coexisting, they will be interdependent on the other.
In Rwanda, there are more young children than teenagers, and more teenagers than adults. This age structure indicates a population that <u>Will double in 30 years</u>
While declining population frequently have more modest level of individuals in these age gatherings, developing populaces ordinarily have higher extents of individuals in more youthful age gatherings. Populaces that are steady normally have a higher extent of individuals in conceptive age gatherings.
The world's populaces are maturing because of declining rates of birth and increasing future. Because of this segment shift, the level of people beyond 60 years old has expanded.
More individuals will live longer on account of expanded admittance to sufficient lodging, supporting food, and medical services, which is the most clear benefit of a maturing populace.
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Sun's energy<span> reaches </span>earth<span>, it is intercepted first by the </span>atmosphere<span>.</span>
