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Biology 21 Online
OpenStudy (anonymous):

The level of oxygen in the air is measured in a garden and on a city road. Which location has a higher level of oxygen and why?

OpenStudy (anonymous):

The level of oxygen in the garden would be higher than that of the city road because plants within the garden would create oxygen. A city road is less likely to have plants, but rather cars or people, which do not create oxygen.

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