What sphere of earth did this food originate?

The correct answer would be biosphere.

The biosphere derived from Greek word "bios" which means "life" and sphaira which means "sphere".  

Thus, it is defined as the region of the earth occupied by living organisms.

The range of this biosphere can range from the height up to 10 kilometers above the sea level to the depth of the ocean where living organisms can be found.

These are the extremes of the biosphere as these areas not much populated with living organisms. In general, life inhabiting layer of the earth is very thin.

Thus, the food (chicken or any other meat; living organism) shown in the given attachment originated in the biosphere.

carbon atoms, hydrogen, oxygen, and nitrogen.

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hope i

-lavira : )