When traced back to the original source - the following energy sources are "originally" from the sun.

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The question asks which energy sources, when traced to their origin, are originally derived from the sun. This invites evaluation of each option in terms of the ultimate source of energy.
Option 1: All the answers were originally derived from photons from the sun. This statement aligns with the fundamental concept that almost all everyday energy ultimately traces back to solar energy, whether directly or indirectly. So this is a strong candidate as the correct overall claim.
Option 2: The energy in meat that is eaten for dinner. The energy in meat comes from the calories in the animal’s consumed feed, plants, or other foods. Those plants derive their energy from photosynthesis driven by sunlight, meaning the meat’s energy ultimately traces back to the sun. However, as a standalone claim, it does not acknowledge the broader link that makes it true for all listed sources, unless paired with the same solar-origin argument of other options.
Option 3: The energy stored as fat in adipose cells. This energy comes from the calories in food, which again originate from plants or other organisms that capture solar energy. Therefore, the fat energy also ultimately traces to the sun, but on its own, it doesn’t explicitly assert the universal solar origin unless integrated with the overarching statement.
Option 4: The energy stored in plants as starch. Plants store energy via photosynthesis, directly converting sunlight into chemical energy as starch. This is a direct solar-derived energy form, so this option is true in isolation but still part of the broader solar-origin pattern.
Option 5: The energy stored in oil that is pumped out of the earth. Fossil fuels like oil are the result of ancient lifeforms that captured solar energy and stored it over eons; thus, their energy ultimately originates from the sun as well. As with the other options, it fits the solar-origin storyline but is most informative when considered with the other sources.
In summary, every listed energy source links back to sunlight in the long chain of energy transfer: photosynthesis in plants feeds herbivores and omnivores, which in turn feed others, and fossil fuels represent ancient photosynthesis-derived stores. Therefore, recognizing that the universal solar origin ties all options together helps explain why the consolidated statement in Option 1 appropriately captures the shared origin of all listed energies.

11:709:255:01 NUTRITION AND HEALTH Lecture Quiz 2 - Energy - Feb 2025

When traced back to the original source - the following energy sources are "originally" from the sun.

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