Polarity and Boiling Point: The polarity of the molecules determines the forces of attraction between the molecules in the liquid state. Polar molecules are attracted by the opposite charge effect (the positive end of one molecule is attracted to the negative end of another molecule.
The five disadvantages of solar power. It's intermittent. Solar energy is only available when the sun is shining. It's low efficiency. It requires large areas of land. It's not completely free of environmental impact. Ultrapure polysilicon is now scarce. It's high cost.
To produce a steady and reliable supply of electricity, wind energy is often combined with solar energy with help of advanced technology and this is one of the major wind power advantages. In developing nations, wind farms are a boon as both the solar energy and wind are free and abundant too! Disadvantages. Every man-made machine has its set of advantages and shortcomings. And for wind turbines, the major disadvantage is the risk of getting damaged during thunderstorms, because of their ...