Importance+Of+Energy

Energy Energy is extremely important for the life of humans, animals and also plants. What would life be without the sun? Energy is the basis of life, movement and progress, that makes everything happen. That is why Energy is so important.


 * Positives of Alternative:[[image:sun.jpg width="458" height="393" align="right" caption="Our main source of Energy"]]**
 * Clean
 * Useful if there is a constant reliable water supply
 * Useful for smal jobs not requiring much energy
 * Occurs daily
 * Low setting up costs
 * No environmental effects
 * Handy for isolated and remote settlements
 * Renewable
 * Non-polluting
 * Can reduce power bills
 * Reliable
 * Makes use of otherwise waste materials
 * No wastage in creation


 * Negatives of Alternative:**
 * Flooded river valley causes habitat loss
 * Dams can fill with silt and clog up
 * Released cold water has little 02 and can kill fish
 * Only useful for small communities
 * Could interfere with shipping and navigational channels
 * Interrupted wave motion may affect the development of coastlines
 * Large surface area required
 * Large ones could effect migratory birds
 * Has a low frequency buzzing sound
 * Can interfere with TV and radio reception
 * Initial cost is high
 * Batteries required to store energy
 * Silicon for constructions must be mined first
 * Large holes need to be drilled
 * Some land used for plantations instead of food production