3. Read the text then decide whether the statements below are True or False.MaterialsSelecting the right material from the many thousands that are available poses a serious problem. The decision can be based on several criteria. The in-service conditions must be characterized, for these will dictate the properties required of the material. A material does not always have the maximum or ideal combination of properties. Thus, it may be necessary to trade off one characteristic for another. The classic example includes strength and ductility. Normally, a material having a high strength will have only a limited ductility. A second selection consideration is any deterioration of material properties that may occur during service operation. For example, significant reductions in mechanical strength may result from exposure to elevated temperatures or corrosive environments. If a compromise concerning desired in-service properties cannot be reached, new materials have to be developed. Probably the most important consideration is that of economics. A material may be found that has the ideal set of properties but is extremely expensive. Some compromise is inevitable. The cost of a finished piece also includes any cost occurring during fabrication to produce the desired shape. For example: commodity plastics like polyethylene or polypropylene cost about $ 0.50/lb, whereas engineering resins or Nylon cost $ 1,000/lb.Solid materials can be grouped into three basic classifications: metals, ceramics and polymers. This classification is based primarily on chemical makeup and atomic as well as molecular structure. Most materials fall into one distinct grouping, although there are some intermediates. More engineering components are made of metals and alloys than of any other class of solid. But increasingly, polymers are replacing metals, because they offer a combination of properties more attractive to designers. New ceramics are developed worldwide, which will permit materials engineers to devise more efficient heat engines and lower friction bearings. Ceramics have been found that become superconducting (showing electrical conductivity with very limited resistance) at extremely low temperatures (about 100 K, approximately minus 170 °C). If this phenomenon is ever achieved at ambient temperature, it may increase the use of ceramics and revolutionize electronics. The best properties of materials can be combined to make composites which often combine two or more materials from these three basic classes. In high-technology applications, a new classification called advanced or smart materials emerges. These materials are semiconductors, biocompatible materials, and nano-engineered materials. Natural materials like wood or leather should also be mentioned, since they offer properties that, even with the innovations of today’s materials scientists, are hard to beat.1.It can be a difficult and complex process to find the ideal material for a specific product or application.