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.
Another source of renewable energy is biomass fuel, hydro power which generates elecricity using dams and rivers etc, wind energy using turbines to generate electricty, solar â¦ power which absorbs energy from the sun to heat water and generate electricty. If you want to know more, check wikipedia or google...