Answer:
A
Explanation:
Carbohydrates is your body's main source of energy. They help to fuel your brain, your kidneys, your heart muscles, and your central nervous system.
When the Sun's energy moves through space, it reaches Earth's atmosphere and finally the surface. This radiant solar energy warms the atmosphere and becomes heat energy. This heat energy is transferred throughout the planet's systems in three ways: by radiation, conduction, and convection.
