Dissolved oxygen (do) is critical to the ecology of an aquatic ecosystem. it can be affected by temperature, pollution, and numerous other factors. when the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed? a)atomsb)a compoundc)an elementd)a solution

Answer

Dissolved oxygen behaves as a solution of O₂ in water. A solution is a mixture of a solute (the substance that is dissolved) and a solvent (the substance that dissolves the solute). In this case, the solute is the Oxygen and the solvent is the water. No atoms, compounds nor molecules are formed in this process, as there is no chemical reaction involved. 

Explanation:

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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