Physical Characteristics and Behavior. 1  Like modern day big cats saber-tooth tiger had a strong built but much stockier than modern day cats. 2  It had short legs, short ears, and short feet. 3  It had a short tail too. 4  The cat had sharp claws powerful enough to rip off the flesh of prey.
Some examples of this are gas to run our car and coal burned in power plants. Once they are used, they are gone forever. A renewable energy source is one that can be replenished. Examples of this include hydropower from turbines in a dam, wind power from windmills, and solar power from the sun.
Radiant energy. https://www.sciencedaily.com/terms/radiant_energy.htm. Radiant energy is the energy of electromagnetic waves. The term is most commonly used in the fields of radiometry, solar energy, heating and lighting, but is also used less frequently in other fields (such as telecommunications). The quantity of radiant energy may be calculated by integrating radiant flux (or power) with respect to time and, like all forms of energy, its SI unit is the joule.