Answer:
By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments.
Explanation:
B. A world history textbook. It is not a source of when the incident occurred, such as the others.
is A,New Alliances were formed
Answer: the right to acquire another nationality
Explanation:
