Find the odd one out with respect to population explosion.
In a region where population is growing at an alarming rate resources will be limited thus development rate of the country will be slower.
A highly expanding population needs more land and many other resources for their survival. The increase in population will lead to increase in demands of the population. This in turn will cause problems like intrusion of land, air and water in many aspects. It will also cause huge stress on existing resources of the country and cause scarcity of food and habitat.