Answer:
There is no enough data on Earth's temperature before life appeared.
Explanation:
The answer would be B. Unorganized deposits of rock and sediment. Hope this helps. :)
Fossil molds and casts preserve a three-dimensional impression of remains buried in sediment. Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Mold fossil-A fossil formed when an animal, plant, or other organism dies and is covered by sediment, its flesh decays and bones deteriorate due to chemical reactions, and a cavity remains below the ground surface.
It was affected by natural selection.
If this is wrong someone please tell me.
