Which condition is necessary for a mold fossil to form? a.) the fossil must be preserved in amber. b.) minerals must replace the remains. c.) the mold must be filled with sediment. d.) hard parts of the organism must dissolve.

Answer is (c) The mold fossil must be filled with sediment.

After filling mold fossil with sediment such as tar , heat and pressure causes tissues of organisms to release oxygen and hydrogen ,as a result a residue of carbon left which create a dead impression of the dead organism. This whole process is known as carbonization. The soft tissues of organism decay in sediment whereas the hard parts such as bones,skull,hard parts of plants etc left behind.

D

Step-by-step explanation:

1.took the quiz

2.my teacher told me

idk

step-by-step explanation: i just don't

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8