Chromium is a steely-gray chemical element that has a high melting point and is often used in dyes, paints, and tanning of leather. It has an acute...
A compound consisting of chlorine, fluorine and carbon. CFCs are very stable in the troposphere. CFCs are commonly used as refrigerants, solvents a...
A highly lustrous printed cotton fabric with often with a glazed finish. A painted or stained calico from India.
A lightweight, balanced plain-woven sheer fabric woven with twist yarns. The twist in the crepe yarns puckers the fabric slightly in both direction...
The general shape of a V character similar to zigzag stripes.
A fuzzy yarn whose pile resembles a caterpillar.
When a body of wastewater contains too much biological material, the bacteria and other microorganisms in it cannot successfully decompose all the ...
A number uniquely identifying each pure chemical compound.
A small pattern of squares.