A Blast from the Past Unit Test

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Question
Use the excerpt from the text How to Become a Fossil to answer the question.

How to Become a Fossil

“Some of this mineral-filled water seeped into the iguanodon’s bones. The rocky bits in the water washed into the tiny bone holes and stuck. For thousands of years, hard minerals from water slowly replaced the bone.”

Which is the main idea of this excerpt from the text?

(1 point)
Responses

The rocks bury the iguanodon.
The rocks bury the iguanodon.

The iguanodon fills up with water.
The iguanodon fills up with water.

Water carries away the bones.
Water carries away the bones.

Minerals take the place of the bone.
Minerals take the place of the bone.

Minerals slowly replaced the bone in the iguanodon.