Final answer:
The original source of energy for all life on Earth is the energy of the sun, which is captured by plants through photosynthesis and then transferred to other organisms through consumption.
Step-by-step explanation:
The original source of energy for all life on Earth is the energy of the sun. This energy is captured by plants through the process of photosynthesis, in which sunlight is converted into chemical energy in the form of glucose. Animals then obtain this energy by consuming plants or other animals that have consumed plants.
During photosynthesis, plants use the energy from sunlight to convert carbon dioxide and water into glucose and oxygen. This glucose serves as the primary source of energy for all organisms, providing the necessary fuel for cellular respiration to occur. In cellular respiration, glucose is broken down in the presence of oxygen to produce ATP, the molecule that powers cellular activities.
Overall, the sun's energy drives the global food chain and sustains life on Earth as we know it.
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