EVERYDAY SCIENCE

Detailed explanation-1: -Explanation: All nutritional energy comes from the Sun: plants use chlorophyll to photosynthesize the Sun’s energy into plant energy. Then animals either feed on plants for that energy, or they feed on the animals that have eaten that plant energy.

Detailed explanation-2: -The energy content of all food molecules can be traced back to the Sun. It is the process of photosynthesis that locks the Sun’s energy into simple carbohydrates like glucose.

Detailed explanation-3: -The energy of the sun is the original source of most of the energy found on earth. We get solar heat energy from the sun, and sunlight can also be used to produce electricity from solar (photovoltaic) cells. The sun heats the earth’s surface and the Earth heats the air above it, causing wind.