The lamd bridge between asia and north america
All of the fossils could be from fish,dinosoures,leaves, or plants. The reason why this could happen is because it could have happened thousand of years ago and the sea level could have been lower.
Answer:
Negative human impact of the environment is pollution we cause by waste and many other things. Positive human impact is the humans helping clean up the environment and help stop as much pollution as they can.
Hopefully this helps:)
