The asthenosphere lies 80-200km below the surface under the lithosphere. Convection also occurs in the asthenosphere. The asthenosphere is mostly made of up rock material (magnesium and iron silicates). The asthenosphere makes up 6% of the mantle and lets the lithosphere move.
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It would be A. Iron & Nickel.
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Answer:
option D
Explanation:
how the plant growth will be enhanced, so it seems incorrect.
64 triples of nucleotides