Question

read the passage and answer the following question(s).
dating rock strata
scientists can determine the age of rock layers by measuring radioactive elements within the rock.
radioactive elements found in sedimentary rocks decay quickly, so this method can only date
sedimentary rocks that are less than 50,000 years old.
volcanic rock contains radioactive elements that decay very slowly, so scientists can date volcanic rocks that
are much older than 50,000 years.
a team of scientists is investigating a rock formation found in a region. the diagram shows the rock
formation that the scientists are investigating.
how old are the fossils in layer 5?
a. between 400 and 550 million years old
b. between 240 and 400 million years old
c. younger than 240 million years old
d. older than 550 million years old

Explanation:

The diagram shows the rock formation. Layer 5 is between the layer marked[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]

Answer:

The diagram shows the rock formation. Layer 5 is between the layer marked[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]