It would most likely be from Chemical Changes
The fossils that provide information on the formation of an oxygen-rich atmosphere are the stromatilites from the Precambrian era. These are layered and columnar fossils consisting mainly of cyanobacteria which were the original life form back then. These bacteria took in carbon dioxide and produced oxygen by photosynthesis as early as 2.5 billion years ago (the earth is about 4.5 billion yrs old).
Answer:
Nonrenewable resources are never replaced.
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PLS MARK AS BRAINLIEST!!!
There is 70 percent of water in our body so
Green plants utilize solar energy through photosynthesis and release energy through respiration.
Photosynthesis is the process specified for plants when they use energy from light to convert water and carbon dioxide molecules into glucose and oxygen.
Respiration can be considered as the opposite procces that occurs when glucose combines with oxygen to produce useable cellular energy. Plants takes in glucose and oxygen, release carbon dioxide and water and releases energy.