The definition of urban is relating to a city or of a city with a population of at least 50,000 people. An example of urban is the nature of Manhattan. urban. of or characteristic of the styles and culture of the inner city, esp. of the black inner city: urban music, fashions, etc. urban.
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.enewable energy resources exist over wide geographical areas, in contrast to other energy sources, which are concentrated in a limited number of countries.
Renewable energy sources are ones which don't run out-which can be renew ed. We can keep using them and using them, and we'll never run out. Examples of renewable sources include wind, water power (hydroelectric), and solar power (light from the sun). Non-renewable energy sources are ones which do run out.As we use them to generate energy, they get used up, and can't be used a second time.ssentially, the difference between renewable and non-renewable energy is that renewable energy can be used over and over again. Whereas, non-renewable energy is energy that cannot be used again once it is used.