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.
Geothermal energy is renewable, clean power derived from the thermal energy in subterranean earth. The earthâs thermal energy is created by the decay of radioactive elements in the earth along with the heat from the sun and that remaining from the earthâs creation.Unlike solar power or wind power, geothermal energy is not interrupted by lull times. The technology also has a small carbon footprint in development.he earthâs thermal energy is created by the decay of radioactive elements in the earth along with the heat from the sun and that remaining from the earthâs creation.