Ozone and carbon monoxide
Answer:
The layers of Earth provide geologists and geophysicists clues to how Earth formed, the layers that make up other planetary bodies, the source of Earth’s resources, and much more. Modern advances have allowed scientists to study what lies beneath our feet in more detail than ever before and yet there still remains significant gaps in our understanding.
Explanation:
Hope it's help
Autotrophs since they are self-feeders and make their own food instead of relying on others (the opposite is heterotrophs)
