miércoles, 26 de enero de 2011
ENERGY CRISIS AND ENERGY ALTERNATIVES (07/10/2010)
Sunlight: the light of the sun
Strong :Physically powerful; capable of exerting great physical force.
Station: A place or position where a person or thing stands or is assigned to stand;
Environment: is a complex of external factors that acts on a system and determines its course and form of existence
Plant: where energy is made.
Dam:A barrier constructed across a waterway to control the flow or raise the level of water.
Wave: a disturbance on the surface of a liquid body, as the sea or a lake, in the form of a moving ridge or swell
Tides: are the rise and fall of sea levels caused by the combined effects of the rotation of the Earth and the gravitational forces exerted by the Moon and the Sun. The tides occur with a period of approximately 12 and a half hours and are influenced by the shape of the near-shore bottom.
Mud:a slimy sticky mixture of solid material with a liquid and especially water.
NON-REBEWABLE ENERGY SOURCE:
--> Fossil Fuels (coal,oil,natural gas) and nuclear energy (uranium, plutonium)
--> Tkes a long time to form
--> Cannot be reused
--> Readily available
--> Multipurpose (oil for cars, heating)
--> Running out
--> Polluting or Radioactive
RENEWABLE ENERGY SOURCES
--> Biomass, Solar, Wind, Wave, Tidal, Hydroelectric, Geothermal
--> Takes a shorter time to form
--> Can be reused or is very abundant
--> Won`t run out
--> Environmentally friendly
--> Geographically selected