Complete the following statement: oxygen is a reactant of while being the product for
(1) photosynthesis, (2) fermentation
(1) cellular respiration, (2) photosynthesis
(1) fermentation, (2) anaerobic respiration
(1) aerobic respiration, (2) photosynthesis

1) Aerobic Respiration 2) Photosynthesis

Aero means Air, or in this case Oxygen, so Aerobic Respiration needs air, Photosynthesis uses Carbon Dioxide, Water, and sunlight to create Oxygen and sugars

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.