Synthetic Fiber and Plastic

Plastic bags are synthetic polymers that resist natural decomposition. They persist in the environment for many years, typically ranging from 10 to 20 years or more depending on environmental conditions. This long degradation time is why plastic pollution is such a significant environmental concern.

The 4R concept for waste management stands for Reduce, Reuse, Recycle, and Recover. Reduce means minimizing waste generation, Reuse means using items multiple times, Recycle means converting waste into new materials, and Recover means extracting energy or materials from waste that cannot be recycled.

Plastic materials are widely used because they are durable, lightweight, and relatively inexpensive to produce, making all of the provided options correct.

PVC stands for Polyvinyl Chloride, which is a widely used synthetic plastic polymer. The term comes from poly (many), vinyl (the vinyl group), and chloride (chlorine compound). PVC is commonly used in construction pipes, flooring, and medical equipment.

Synthetic fibers are generally preferred because they are more durable and less expensive than many natural fibers, making both options 1 and 2 correct.

Petrochemicals are chemical products derived from petroleum. Since crude oil and rock oil are synonyms for petroleum, all of these are correct origins.

Rayon is a versatile semi-synthetic fiber used in various textiles, including carpets, curtains, and clothing. Among the choices, carpet is a common application.

Nylon was first synthesized by Wallace Carothers at DuPont in 1935, but the patent process and initial development occurred around 1931.