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FLOOR MATS THAT GENERATE LIFE FORMS ON THE LAND AND FROM THE SEA.

 A hydrothermal vent is a breakage or fissure in the Earth’s surface that releases geothermally heated water.   Stromatolites usually form in shallow water. They are formed by bacteria such as cyanobacteria. … Cyanobacteria use water, carbon dioxide, and sunlight to create their food, and expel oxygen as a by-product. The real significance of stromatolites is that they are the earliest fossil evidence of life on Earth. Massive formations of stromatolites showed up along shorelines all over the world about 3.5 billion years ago. They were the earliest visible manifestation of life on Earth and dominated the scene for more than two billion years. Stromatolites are special rock-like structures. They usually form in shallow water. Bacteria form them such as cyanobacteria. There may also be other types of bacteria and single-celled algae. MINERALS, abiogenesis Clay minerals Stromatolites  microbial mats VERN BENDER           VERN BENDER        VERN BENDER
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