Which factors influence changes in consumer demands? check all that apply

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above

What is a monomer? how do they form a ploymer from the view point of chemical bonding?