According to one hypothesis, life on Earth emerged from in the presence of large amounts of gases seeping from deep-ocean vents. Another hypothesis, called the primordial soup, suggests that the formation of life was due to the effects of
in Earth’s atmosphere.

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multiplying and dividing the two decimals and the eqations by the same number of the overalls

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.