Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
Reasons why silk cannot be soaped 1. Because tap water contains calcium and magnesium rods, it will become calcium soap or magnesium soap when it touches soap. 2. In addition, the silk has a positive charge and the soap has a negative charge. The two…