When was plastic invented for commercial use?
A) 18th century
B) 19th century
C) Early 20th century
D) 21st century
Correct Answer:
C) Early 20th century
Explanation:
Plastics were invented for commercial use in the early 20th century. The development and commercialization of various types of plastics, such as Bakelite and celluloid, began in the early 1900s. These materials revolutionized industries and had a significant impact on manufacturing, packaging, and everyday life. Options A, B, and D are not accurate because plastics were not invented in the 18th, 19th, or 21st centuries for commercial use.
