Globalization has the largest effect on the economies. Globalisation is the process of interaction and integration between people, companies, and governments worldwide.
After 200 years of long British rule, India got independence in 1947. India was then divided into two muslim majority Pakistan and Hindu majority India.
Convex mirror is used as rear view mirror in vehicles. Because the image is smaller, more image can fit onto the mirror, so a convex mirror provides for a larger field of view than a plane mirror. This is why they are useful.