Q1: Plastics as a material of construction suffer from the drawback of low

ANS:C - strength

Plastics as a material of construction suffer from the drawback of low strength. While plastics offer many advantages such as lightweight, corrosion resistance, and versatility, they often have lower strength compared to metals or ceramics. This limitation in strength can restrict their use in certain applications, particularly those requiring high mechanical loads or structural integrity. However, advancements in polymer science and engineering have led to the development of high-performance plastics with improved strength characteristics, mitigating this drawback to some extent.