BI-2128
Factors affecting photosynthesis
Biology · Secondary 4 · Hard · Factors affecting photosynthesis
A pond plant is placed 30 cm from a lamp and produces 24 bubbles of oxygen per minute. When the lamp is moved to 60 cm, the light intensity halves. Assuming the rate of photosynthesis is directly proportional to light intensity, how many bubbles per minute are now produced?
- 12 bubbles per minute
- 22 bubbles per minute
- 8 bubbles per minute
- 48 bubbles per minute
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