A) Which process in photosynthesis uses energy from the sun? (1 point)
splitting water into hydrogen and oxygen
absorbing carbon dioxide
releasing oxygen
combining carbon dioxide and hydrogen
The process in photosynthesis that uses energy from the sun is absorbing carbon dioxide.
A) A scientist fills a glass container with water and places an aquatic plant inside the container, then closes the lid and places the container in direct sunlight. The scientist observes small bubbles on the surfaces of the plant's leaves on days 1 and 2, but no bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance should be added to the water in order for the bubbles to reappear? (1 point)
carbon dioxide
glucose
oxygen
hydrogen gas