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21-11-2022
Biology

Answered

A student wonders if the bubbles on this water plant are oxygen gas (02). However, identifying a gas as 02 with direct evidence requires many kinds of equipment.
Which observation would provide indirect evidence that supports a hypothesis that the bubbles are 02?
• A. A description of the shape of each leaf after a plant is kept under dim light
• B. A count of the bubbles produced over time by one plant under bright light
• c. A decrease in the approximate size of each leaf on plants kept in darkness
• D. An increase in bubbles on the plant when it is moved under a brighter light
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