What is the source of energy for most life on earth
- What is the ultimate source of energy for most life on earth
- What is the primary source of energy for most life on earth
- What is the primary source of energy for most life forms on earth
- What is the original source of energy for most life on earth
- What is the primary source of energy for most life on earth explain how it powers ecosystems
- What is the main source of energy for most life on earth
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