Answer: changed by molecular oxygen
Explanation:
Biologically induced molecular oxygen (dioxygen, O2) started to accumulate in Earth's atmosphere and changed Earth's atmosphere from a weakly reducing atmosphere to an oxidizing atmosphere.
The type of solution formed is hypertonic.
<h3>What are hypertonic solutions?</h3>
Hypertonic solutions are solutions with higher dissolved solutes as compared to the sap of the cells suspended in them.
Epsom salt is made up largely of magnesium sulfate. Thus, a solution formed by dissolving Epsom salt is water will have more magnesium in it than the cells of the part of the body soaked in it.
Hence, such a solution is hypertonic.
More on hypertonic solutions can be found here: brainly.com/question/13886457
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False. this earth has always had life. be it microscopic cells to a gigantic titanosaurus