Question

question 6
study the information on the chart and the graphic.
what can you infer about photosynthesis?
distance between the pondweed and light source (metres) number of bubbles of gas in 1 minute
1.0 8
0.5 28
0.25 105
0.125 105
a the closer the light source, the lower the amount of oxygen gas produced.
b the closer the light source, the higher the amount of oxygen gas produced.
c the closer the light source, the higher the amount of carbon dioxide gas produced.
d the closer the light source, the lower the amount of carbon dioxide gas produced.

Explanation:

Photosynthesis produces oxygen. The table shows that as the distance between the pond - weed and light source decreases (closer light source), the number of oxygen bubbles produced in 1 minute increases. This indicates more oxygen is produced.

Answer:

b. The closer the light source, the higher the amount of oxygen gas produced.