Question

looking for clues
the scientists return to their lab. they cut the rocks into thin slices. then they study the slices under a microscope. the materials inside the rocks are full of clues. they help scientists understand why kilauea keeps blowing its top.
this person safely collected lava for scientists to study.
what does the author want readers to understand about the rocks?
the rocks need to be studied outside the lab.
the rocks help tell why the volcano keeps erupting.
the rocks are too big for one person to carry.

Explanation:

The text states that the materials inside the rocks are full of clues and help scientists understand why Kilauea (a volcano) keeps erupting.

Answer:

The rocks help tell why the volcano keeps erupting.