Answer:
There are two answers to this question. Gold or Aluminum.
Cast- solid copy
Mold- hollow form
Carbon film- details left after an organism decays
Trace fossil-record of an organisms activity
Petrified fossils- living things turned into rock
Well, It's either OCD or PTSD... Depending on what the person has gone through in the past, it could be PTSD, PTSD would be caused by being traumatized by something, Like if I got robbed, i would check if my doors are locked.
A plant cell has chloroplasts.
An animal cells doesn't.
Uranium-238 is found only in igneous or volcanic rocks. They can date a very ancient fossil also but carbon cannot date and ancient fossil. Trees are not very ancient. Carbon-14 can be used to measure only fossils of recent age.
