He left the railroad in 1865 to focus on his other business interests, including the Keystone Bridge Company. By the next decade, most of Carnegie's time was dedicated to the steel industry. His business, which became known as the Carnegie Steel Company, revolutionized steel production in the United States.
The question is incomplete as it does not have the options which are:
A)C-14
B) index
C)trace
D)stratified
Answer:
Option-B
Explanation:
An index fossil is defined as those fossils which are distributed over a large geographical area and appears for a shorter period of time.
They are very useful to the geologists as this fossil are useful in determining the relative age of the rocks. It also helps in the process of correlation of rocks.
In the given question, trilobite is considered an index fossil that appeared in the Cambrian period and got extinct by Permian period.
Thus, Option-B is the correct answer.
~Hello there! ^_^
Your question: Complete the famous motto of general Nathanael Greene of the continental army:"we fight, get beat, rise, and "..?
Your answer: The quote by Nathanael Greene was: "We figh, get beat, rise and fight again".
Hope this helps~
Fab. Yuh Jess SJSU’s SJSU’s SJSU’s skin eksid
