Renewable sources of energy can be replaced.
  • Solar energy is the solar radiation that reaches the Earth. 
  • Wind energy is mainly used to produce electricity.
  • Hydropower is a source of electricity.
  • Geothermal energy is the heat from the Earth.
  • Biomass is organic material from plants and animals.

Non-renewable sources of energy cannot be replaced.
Nuclear Energy is used to generate electricity.
Fossil fuels: 
·   Oil
·   Gas
·   Coal 

Uses of energy.
We use a lot of energy in our homes, in businesses, in industry, and for personal travel and transporting goods.

There are four major sectors that consume energy:
· The industrial sector includes facilities and equipment used for manufacturing, agriculture, mining, and construction. 
· The transportation sector comprises vehicles that transport people or goods, such as: cars, trucks, buses, motorcycles, trains, subways, aircraft, boats, barges, and even hot air balloons. 
· The residential sector consists of homes and apartments.
· The commercial sector includes buildings such as offices, malls, stores, schools, hospitals, hotels, warehouses, restaurants, places of worship, and more.

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