Q Which of the following statements about bone fossils is true?

[How Bone Fossils are Formed]
1. A dinosaur’s body is washed into a body of water, such as an ocean or river, and gets buried under mud or sand.
2. The soft tissues decompose, leaving only the hard parts, such as bones and teeth.
3. Over time, these bones are compressed by the layers of sediment above them, harden like stone, and become fossils.
4. Tectonic movements push the buried layers up to the surface, and the fossils are eventually revealed as wind and rain erode the soil.