Different Types of Hardness Hardness depends largely on the packing of atoms in a material and the strength of interatomic or intermolecular bonds. Because the behavior of a material is complex, there are different types of hardness. Diamond has an extremely high-scratch hardness.

15 Most Toughest Exams in India We have mentioned the official websites of each examination and from where you will have to download their examination forms or how to apply online links. If you like it kindly share it. So here is the list of the most toughest government exams in India (2021). 1) CIVIL SERVICE EXAMINATION | UPSC

Average Hours Spent Preparing for Class Each Week: 19.24. At #3 on the list of the hardest college majors is aero and astronautical engineering. Students in this major normally spend around 19 hours and 15 minutes a week preparing for class.

Given below are the Class 10 Maths trigonometry extra questions.This includes both important and tough questions a. Multiple Choice Questions b. Short Answer type c. Long answer type d.

Graphene Made up of carbon atoms, graphene is a nano-cousin to diamond that forms a super-thin sheet only one atom thick. This may sound ultra-delicate, but the force required to break it is very.