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.
Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.he heat that is used for geothermal energy can be from deep within the Earth, all the way down to Earth's core â 4,000 miles (6,400 km) down. At the core, temperatures may reach over 9,000 Â°F (5,000 Â°C). Heat conducts from the core to surrounding rock.