Fossils can be preserved in either ice or snow, also can be preserved in mud, coal, sand, silt.
Fossil in Amber
Water
If something is preserved in ice or snow it is frozen. When ice is frozen, it is a liquid that has turned into a solid.
a fossil is a preserved remain or trace of an organism that lived in the past
Hassayampa River Preserve
The climate isn't right for preservation, bacteria is most active in warm wet climates. Which is exactly what a rain forest is.
National parks and forest reserves were created to preserve America's natural treasures. This has, and will, allow everyone to enjoy these preserved wonders forever.
Trees provide oxygen for us to survive. They also provide homes for animals and slow down things like run off to prvent silt build-up. They also need to be preserved for future generations to enjoy.
It's "well-preserved".
corn is preserved?
Rics is totally not preserved! My parents are from Laos and they told me it's not preserved.
Flora preserved jam every year. The mummy was perfectly preserved. I preserved a petal of the rose in my copy of The Scarlet Letter. The preserved skin tissue helped identify the body.
embalmers preserved a mummy.
Preserved is an action done to something. For example, "She preserved her father's picture carefully."
All angles are preserved. The sequence of line segments is preserved.
orgns are preserved because other persons will make use of it that's why it's preserved.