Answer:
B, A fossil found in rocks from one time period
Explanation:
Fossils are used to determine the ages of rock layers. Index fossils are the most useful for this. Index fossils are of organisms that lived over a wide area. They lived for a fairly short period of time. An index fossil allows a scientist to determine the age of the rock it is in. Hope that this helps you :)
Answer:
The answer is A or number 1
Explanation:
Answer:
moth is biotic
Explanation:
biotics are living things
Answer: D. Fossil Record
Hope
this is correct!!
Answer:
B
Explanation:
if the vibration has a low frequency then the sounds gonna be low as well as a high frequency having a higher sound
