Many scientists hypothesize that the earliest life on Earth formed in and along the edges of hydrothermal vents deep in the ocean. Scientists have found billion-year-old fossilized archaebacteria in types of vents called black .

it’s lava came from an explosive eruption

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.

condenser is used to focus in the light microscope.

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