What is the ultimate source of energy in the food we eat?
2 answers
The ultimate source of energy in the food we eat is the sun. Plants use energy from sunlight to convert carbon dioxide and water into glucose through a process called photosynthesis. This glucose then becomes the primary source of energy for both plants and organisms that consume plants, such as animals and humans.
How does photosynthesis vary in different seasons, and how does this affect the amount of carbon dioxide in the atmosphere? (Think about what time of year plants grow the most!