What is the purpose of the biogeochemical cycles? to cycle energy through a food chain to recycle matter through the biosphere to recycle rocks through the layers of earth to cycle nutrients through the human body

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.