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The Iron Hypothesis was a proposal that in certain parts of the ocean, the limiting factor on phytoplankton growth was lack of trace metals, in particular Iron (Fe). This hypothesis has been tested and proved to be correct.

In regard to "spheres", the question therefore fails to make any sense.

Q: Which sphere is not involved in the iron hypothesis?

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Some facts about a sphere is, a sphere is round.

The correct answer is Sphere. All of these are geometric shapes, however only the sphere is a 3 dimensional one.

a sphere is called a sphere because , well , its just a other name for a ball such as the earth.

sphere

There are no corners to a sphere because a sphere should have no vertices.

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The Iron Hypothesis was a proposal that in certain parts of the ocean, the limiting factor on phytoplankton growth was lack of trace metals, in particular Iron (Fe). This hypothesis has been tested and proved to be correct. In regard to "spheres", the question therefore fails to make any sense.

the process is to know what they hypothesis means

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the process is to know what they hypothesis means

the process is to know what they hypothesis means

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The Iron Curtain -BAK

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Early astronomical observers did not always conform to the expected predictions of the transparent sphere hypothesis, as the observation of planetary retrograde motion led to the rejection of this model. The discovery of deviations from perfect circular orbits and other astronomical phenomena challenged the simplicity of the transparent sphere hypothesis held in early astronomy. Modern understanding of celestial mechanics has replaced this simplistic model with more accurate descriptions of planetary motion.

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Joseph Stalin of the Soviet Union.

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