Question

which of the following are used to preserve fruits and vegetables or as coating for electrical wire? answer options: select one of four urea-formaldehyde plastics polyvinyl plastics polyester resins polyethylene resins

Explanation:

Polyvinyl plastics (like PVC) are used for preserving fruits/vegetables (e.g., as cling wrap) and as electrical wire coatings due to their insulating and flexible properties. Urea - formaldehyde plastics are more for molded items, polyester resins for composites, and polyethylene resins for packaging but not typical wire coatings or fruit preservation in the same way as polyvinyl.

Answer:

Polyvinyl plastics