Problems of the world: From the beginning of time the world is not perfect. It is facing many problems. Every century brings new challenges. So the world is not perfect. Last century brought war. It is full of two wars. One is the first world war and the second is the second world war. So these wars have destroyed the world entirely. Remaining created fear which could not go away. The destruction of Hiroshima brought an issue of birth which could not resolve till day. So the world is creating new problems for every century which could not be resolved till now. So man is always struggling to resolve the problems as necessity is the mother of invention. So in resolving problems we are entangled in a vicious circle which is complicated and knotty. So we can not come out of it. So this century has brought new challenges. Pandemic is one of the problems. It is composed of many elements. Which is deteriorating it. The main cause behind this pandemic is pollution. The biggest prob...