A second-grader comes up to you and says, “We just learned that the sun made all the stuff in my lunch. But my lunch was a tuna sandwich.- some bread, and tuna with mayo!”
Using language a second-grader would understand, explain how the sun
was the original source of the energy in the tuna sandwich.

The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?