A student wonders if bubbles on this watermm be plant are oxygen gas Which observation would provide indirect evidence that supports a hypothesis that the bubbles are O2

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.

Which fact represents evidence for the big bang theory?

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j