Vulcanization by Ms. Aastha Pareek, Assistant Professor (Biyani Group of College).

In this video, Ms. Aastha Pareek, Assist. Prof. in Biyani College of Science & Management Kalwar, explains chemically what will happened when sulphur is treated with rubber. Its various physical properties …

Lichen by Dr. Ruby Singh Parmar, Assistant Professor, Biyani girls College

In this video , Dr. Ruby Singh Parmar, Assistant Professor, Biyani girls College, Jaipur, explains about lichen Structure and their life history of lichen