You observe small bubbles of air on the underside of an underwater leaf.
Where could these air bubbles be coming from?

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite