Question

Observation table:

Number of oxygen bubbles recorded per minute
Sunlight ,Red light, Blue light, Green light

Inferences:​

Answer 1

• Light intensity  is one of the factors affecting the rate of photosynthesis.

• Light intensity directly affects the light-dependent reaction in photosynthesis and indirectly affects the light-independent reaction.

• Very high light intensities may slow the rate of photosynthesis due to bleaching of chlorophyll.  
• more oxygen bubbles indicate more photosynthesis

thus decreasing order of photosynthesis is as follows:-

red light(700nm) > green light(530nm) > blue light(464nm) > sunlight(400 to 700nm).

thus increasing order of oxygen bubbles:-

sunlight < blue light < green light < red light.