Is it asking for a food or what ?
the first european settlers to establish colonies in the united states are the spanish settlers
Answer: Abraham Lincoln set the African-American slaves free with Emancipation Proclamation.
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.
