Explain the statement "the closer our food sources are to the sun as a direct so

Meat is farther from the sun than plant material. Consuming meat decreases the amount of usable energy that is obtained directly from the sun because animals must first consume plants before they are eaten by humans. Every time energy moves from one trophic level to the next, as much as 90% of the useful energy present in the lower trophic level is lost. This is because the second law of energy states that entropy increases as one goes from one level to the next and energy is lost as heat or light at each transfer. For this reason, people who rely heavily on meat as a source of food energy are less energy efficient than ones that rely on vegetarian diet. The biomass pyramid echoes this, as each trophic level contains less biomass (energy) than the lower level.