Question Detail
Question
__________ fossil is formed when minerals replace the remains of the organism & they become rock
Correct Answer
Option A is the correct answer.
Detailed Explanation
Petrified fossils (or permineralized fossils) form when minerals carried by water seep into the pores of organic remains and crystallize, turning the material into stone. A mold is an impression, and a cast is a replica formed when a mold fills with sediment.
Hint
Which type of fossil is 'turned to stone' by mineral replacement?