Astudent hypothesizes that the bubbles o this water plant are oxygen gas (o2) however identifying a gas as o2 with direct evidence requires many kinds of equipment.
which observation would provide indirect evidence that the bubbles are not o2?

answer: c.

explanation:

the match duh

explanation:

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .