The important external factors affecting photosynthesis are:
A. light, chlorophyll, temperature
B. light, stomatal opening, oxygen
C. light, protoplasmic factor, oxygen
D. light, CO2 and oxygen
Answer:D
The important external factors affecting photosynthesis are:
A. light, chlorophyll, temperature B. light, stomatal opening, oxygen C. light, protoplasmic factor, oxygen D. light, CO2 and oxygen