Earth's History: Fossils
Which type of dating method can be used on rock layers by applying the Law of Superposition?
Which of the following is a requirement of index fossils?
Lived over a vast time period but found only in one location
lived only for a short time but was found all over the world
Not a prevalent species at any time
Still alive today
Where can the oldest layer be found?
The top layer
The middle layer
They are all the same age
The bottom layer
How are fossils created?
Traces of organisms get turned into stone.
Dead organisms are quickly buried for millions of years.
Animals get trapped.
All of the above
Why is the fossil record incomplete?
fossils get eroded away over time
most organisms never became fossils
scavengers and decomposers eat them too quickly
all of the above
There are 5 questions to complete.