Answer:
In addition to the drought and marauding enemy theories, scientists suggest that things like poor sanitation, pests, and environmental degradation may have caused the Anasazi to move.
Explanation:
The answer is A. Based on research, Karankawa moved (voyaged) place to place, coming to the conclusion of the only viable answer, that the Karankawa were nomadic.
Index fossils are the fossils of organisms that existed over a wide area but only for a limited time period.
Explanation:
The index fossils are fossils that are of huge use for the scientists of all fields when it comes to the Earth's history and its reconstruction. These fossils have this name because they are good indicators about a particular time period. The scientists are able to determine a geological period without even examining the layers, but just by simply finding these fossils.
There are several characteristics that make the index fossils special. They are found over very large area. Not just that they are found in lot of places, but they are also abundant. They existed only for a limited time period, thus being good indicator of a particular geological period. They are easy to distinguish from the other fossils.
The fossils can be divided into five main categories:
- trace fossils
- molds and casts
- petrified fossils
- carbon films
- preserved remains
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The battle of Gettysburg was the confederate's best chance of getting a war-winning victory.
<span>C.) Not to let Communism expand to any other countries</span>
