The whole world,s is over crowding with every passing of day.  That is causing the world to be more dense. The human has reached up to 7 billion till now and estimation is that it will increase up to 10 billion in 2050. It is the rule of nature to balancing every thing in life . Much of countries has a high rate of deaths rather than growth due to natural disasters. World,s population is also effected by terrorist activities and internal and external wars. Over crowded will not be a dream of any [...]