Final answer:
Photosynthesis is a critical process that uses solar energy, carbon dioxide, and water to produce carbohydrates for energy and growth, while also releasing oxygen into the atmosphere, which is essential for the survival of aerobic organisms.
Step-by-step explanation:
The role of photosynthesis is critical for life on Earth, and two statements accurately describe its function:
Photosynthesis provides oxygen to the atmosphere, which serves as a vital reservoir for organisms that rely on oxygen for cellular respiration.
The process of photosynthesis uses carbon dioxide and water to produce glucose, which is then used by the plant for cellular work and as a food source for other organisms.
During photosynthesis, solar energy is used to convert carbon dioxide and water into energy-storing carbohydrates like glucose, with oxygen being a by-product of this process that is released into the atmosphere.