Question

3 Three identical beakers of pondweed were left in
darkness, dim light, or intense light for an hour.
Then the oxygen in each beaker was measured
using an oxygen sensor.
Dissolved oxygen (mg/dm
5
Lighting
darkness
dim light
intense light
14
20

Describe how the amount of oxygen in the
water was affected by the light intensity.
​

Answer 1

Answer:

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