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:
Cells connect together to form a battery
Explanation
Answer:
D. Some of the bacteria may be resistant and survive.
Answer:
1. Damage to Mangrove Ecosystems and Coral Reefs.
2. Coast Damage.
3. Death of Biological Resources.
Explanation:
pollution itself is bad