Last two questions of the day.
The process of photosynthesis produces __________ and __________.
a. carbon dioxide; oxygen
b. sugar; carbon dioxide
c. sugar; oxygen
d. carbon dioxide; water
Why did the pH change during the light experiment?
a. Photosynthesis removed carbon dioxide from the water
b. Photosynthesis added oxygen to the air in the test tube
c. Photosynthesis added carbon dioxide to the water