The orbital period is proportional to the 3/2 power of the semi-major axis. Earth, with a semi-major axis of 1 au has a period of 1 year, so Sedna is expected to have an orbital period of
480^(3/2)×(1 year) ≈ 10,516 years
Answer: Alaska, Yukon territory, British Columbia, Washington,Oregon, Idaho,Nevada, Wyoming, Utah, and Colorado.
Explanation:
Mountain building, weathering, and erosion eventually expose the fossil at the surface. Sedimentary rock is the type of rock that is made of hardened sediment. Most fossils form from animals or plants that once lived in or near quiet water such as swamps, lakes, or shallow seas where sediments build up.
It's gets colder, wetter, and not much sun is received.