Bubble gum contains

Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain

An air bubble contained inside water. It behaves as

What is the main constitution of bubble gum?

Bleeding gums is a symptom of ________ .

Molecular glue or gum is

Bleeding gums is caused by ________.

Molecular glue or gum is

Rubber , gums , cellulose are examples for