Why is the sun our principal source of energy?

Answer Our solar system revolves around the sun, which is so big that 1.3 million Earths could fit inside it. In addition to its prominence in the solar system, the sun also provides most of life's energy... Read More »

Top Q&A For: Why is the sun our principal source of energy

Is an aerobic source of energy faster than an anaerobic source of energy?

For a fast, high-power contraction, muscle fibers employ a high-energy molecule known as creatine phoshate. This is an anaerobic source of energy that produces energy for cells more quickly than ae... Read More »

Which non-renewable source is the nation's second leading source of energy?

According to the United States Energy Information Administration, natural gas is the second leading source of energy, accounting for 24 percent of energy in 2008. In third is coal which accounts fo... Read More »

How Is the Energy Source Used for Mechanical Energy?

Energy is the ability to do work. It can take numerous different forms. Energy of motion is called kinetic energy, while energy that an object has because of its location is called potential energy... Read More »

Is geothermal energy an unlimited source of energy?

So long as the Earth's core remains molten and does not cool (as happened on the planet Mars), geothermal energy is limited only by man's ability to harness it. For practical purposes, it is unlimi... Read More »