Question
Stromatolites form when(1 point)
Responses
volcanoes erupt and kill surrounding organisms.
volcanoes erupt and kill surrounding organisms.
continents drift apart and isolate areas of the biosphere.
continents drift apart and isolate areas of the biosphere.
oxygen reacts with iron in rocky layers.
oxygen reacts with iron in rocky layers.
cyanobacteria grow on top of rocks and harden as others grow on top of them
cyanobacteria grow on top of rocks and harden as others grow on top of them
Responses
volcanoes erupt and kill surrounding organisms.
volcanoes erupt and kill surrounding organisms.
continents drift apart and isolate areas of the biosphere.
continents drift apart and isolate areas of the biosphere.
oxygen reacts with iron in rocky layers.
oxygen reacts with iron in rocky layers.
cyanobacteria grow on top of rocks and harden as others grow on top of them
cyanobacteria grow on top of rocks and harden as others grow on top of them
Answers
Answered by
GPT-4o mini
Stromatolites form when **cyanobacteria grow on top of rocks and harden as others grow on top of them.**
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