As you view the graphics, the idea is to develop the concept of polarity in a visual manner. The more areas of red and blue that you see, the more polar is the compound and the functional group in the compound. Look at the amide, and acid. The more areas of gray and lighter shades of red and blue, the more non-polar properties are being depicted. Look at the amine, ether, and alkane.
Making the world better, one answer at a time. Advantages-Good quality and it gets rid of asthma. Disadvantages-Its very expensive and your killing silk worms just to get a single silk thread.ransporting silk by sea instead of sending it west on the Silk Road was faster and cheaper. No tolls to pay or bandits to worry about. There was some danger from pirates and â¦ storms, but nothing is perfect. After China was opened to foreign trade, ships were obviously a more economical means of transporting silk.
This silk cocoon is made of one single thread of raw silk that ranges from 1,000 to more than 3,000 feet in length. The silk is produced in the salivary glands of the silkworm and it is used for protection during the silkwormâs pupal stage. Because silk is considered one of the worldâs most beautiful fabrics, it is estimated that approximately 75 million pounds of raw silk are produced each year. It takes more than 3,000 cocoons to make one pound of silk and more than 10 billion pounds of mulberry leaves to feed the silkworms that produce the silk.