How is a fossil cast or mould formed?
A) An impression of the organism is formed by a thin film of carbon.
B) Silica fills in all open spaces in the original organic structure.
C) A mineral such as quartz, calcite, pyrite, or apatite is precipitated in the space left by dissolution of an original shell or other hard part.
D) Soft mud surrounds a broken dinosaur bone and hardens to a mudstone cast.
Correct Answer:
Verified
Q98: What is probably the single most important,
Q99: A horizontally bedded succession of thick, well
Q100: The correct order for increasing carbon content
Q101: Which of the following is fossilized resin
Q102: Carbonized fossils of Opabina, Ottoia, and Wiwaxia
Q104: An irregular pile of laminated sandy beds
Q105: What is amber?
A)petrified wood
B)the fossilized remnant of
Q106: Fossilization by _ preserves the most delicate
Q107: Fossil insects are sometimes preserved in what
Q108: The soft-bodied fossils of the Burgess Shale
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents