Answer: Floods are a natural part of the water cycle, but they can be terrifying forces of destruction. ... Floods usually occur when precipitation falls more quickly than that water can be absorbed into the ground or carried away by rivers or streams.
Explanation:
The correct answer is: Layer 1, layer 2, and layer 4 in all three regions.
The index fossils are fossils that are commonly used for identifying a geological period of time, and these fossils are also very wide spread, as well as having a rapid evolutionary trends.
By this picture, we can easily see that even though we have rock strata from different regions, the same layers contain the same fossil, and it is a fossil that also is rapidly evolving so has a minor change in each layer.
So the plant doesn't freeze (; that was easy
Phylogenetic
Scientist use a phylogenetic tree to track the evolutionary history of a species.
