The seismic focus is the point in the earth's crust where an earthquake originates from.
Answer:
Index fossils, intrustions and cross-cutting relationships.
Explanation:
The correct list of three different geologic features that help scientists determine the relative ages of rocks by their position is "index fossils, intrusions, and cross-cutting relationships".
Dr luceros team used looters trenches rather than dig new ones because they wanted to protect the site from further damage. This is because to prevent further destructions from their activity.
The correct option is C where the western pacific and African regions will have the same number of cases of hepatitis in 2013,
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What is Hepatitis?</h3>
Hepatitis is a viral infection or liver damage caused by drinking alcohol there are five types of Hepatitis A B C D E respectively.
Thus, 79% of children born in Western Pacific and African regions will have the same number of cases of hepatitis.
Learn more about Hepatitis here:
brainly.com/question/14326521
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