Earth’s mantle is
a.
a layer of molten metal.
b.
a layer of hot rock.
c.
a dense ball of solid metal.
d.
a layer of rock that forms Earth’s outer skin.
c-14 is carbon-14, or radiocarbon. it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.
Answer from: Quest
257 grams h2o i think
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