Most eubacteria are because most rely on nutrition from other organisms.

heterotrophic(Heterotrophic Eubacteria are among the most abundant and diverse bacteria on Earth,)

Explanation:

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answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.