BI-2151
Measuring length
Biology · Secondary 4 · Medium · Measuring length
A student investigates how air movement affects transpiration using a potometer. With no fan, the air bubble moves 18 mm in 6 minutes. What is the rate of movement of the bubble?
- 3.0 mm min
- 0.33 mm min
- 12 mm min
- 108 mm min
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