C. Witchcraft i dont beleive in witch craft but that is the only thing that i can think of.
I'm pretty sure your answer is correct :)
Answer: They divide it on eons.
Explanation:
They can see it from geologic strata and the fossil record. Major volcanic events altering the Earth's environment and causing extinctions may have occurred 10 times in the past 3 billion years. Different eons have different animal and plant life. (eg. trilobites)
Can you give me examples of the different statements??