According to the laws of physics governing energy
A)when a liter of gasoline is burned in a car engine,100% of its energy moves the car along the road.
B)when you eat a kilogram of food,you will assemble exactly a kilogram of additional body weight on your body.
C)sunlight that is absorbed on the earth eventually returns to space as dispersed heat.
D)a calorie of sunlight becomes a calorie of plant tissue that,when eaten by an animal,becomes a calorie of heat lost in muscle "power."

Question

Quizplus · Accepted Answer

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. When sunlight is absorbed by the Earth, it is eventually re-radiated back into space as heat, following this principle. Choices A and B are incorrect because they imply 100% efficiency in energy conversion, which is impossible due to the second law of thermodynamics (entropy). Choice D simplifies complex biological and physical processes and overlooks the inefficiencies and energy losses at each step.

According to the Laws of Physics Governing Energy