The bus company that your school uses is thinking about changing the material that makes their current fleet of buses because the buses are running into problems with

corrosion, the reaction of metals with oxygen present in air to form metal oxides that

are not structurally sound and are visually unappealing. In addition, the current

construction material is difficult to shape and is not visually attractive. The bus

company has asked your teacher to recommend an alternative material that could be

used to manufacture the next round of buses needed for your school and other schools

in the district. In addition to meeting certain chemical and physical requirements, the

material recommended must also be affordable.