Answer:
Carbon film is when living thing turned to rock.
petrified fossil is the detail left after an organism decays
Explanation:
Petrified fossils is form when minerals replace the structure of an organism.
Carbon film is a type of fossil found in any rock when organic material is compressed.
The oxygen atoms undergo reduction, formally gaining electrons, while the carbon atoms undergo oxidation, losing electrons. Thus oxygen is the oxidizing agent and carbon is the reducing agent in this reaction.
Answer: The DNA of the organism in that area.
Explanation:
Phosphate is found in the DNA of the organism. If the food is contaminated with the radioactive phosphate then it can be examined by the DNA of the organism that had food contaminated with phosphate.
The DNA of the organism consists of the nitrogenous bases, ribose sugar and phosphate.
The traced amount of phosphate can be found in it only.
