The metalloid that has three valence electrons is Boron~
<span>Selenium (se)
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Yes all living things are mad up of two or more cells
Answer:
I think it's C
<u>Convection currents are identified in Earth's mantle. Heated mantle material is shown rising from deep inside the mantle, while cooler mantle material sinks, creating a convection current. It is thought that this type of current is responsible for the movements of the plates of Earth's crust.</u>