21. Billions of fossils of plants, fishes, and land animals, many almost perfectly preserved, could not have been buried by natural _______ observable in the world today.

DEATHS
DISEASES
EVELOUTION
PROCESSES

processes right?

That makes good sense to me.

Yes, the correct answer is "processes". In the given statement, it is mentioned that billions of fossils of plants, fishes, and land animals are almost perfectly preserved. These fossils could not have been buried by natural processes observable in the world today.

To arrive at this answer, we can examine the options provided: "deaths," "diseases," "evolution," and "processes."

- "Deaths" and "diseases" refer to specific events or conditions related to living organisms and are not relevant in the context of fossil preservation.
- "Evolution" is a gradual change in organisms over time and does not directly involve the burial or preservation of fossils.
- "Processes" is a more general term that encompasses a wide range of natural phenomena, including various geological and environmental processes that can lead to the burial and preservation of fossils.

Therefore, "processes" is the most appropriate option to complete the statement, indicating that the fossils described could not have been buried by natural processes observable in the world today.