What is the main difference between an experiment and a correlational study?.

Class iii atmospheric hazards are those involving

Summarize the work of famous environmental scientists of the past.

Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.