SSC MTS EXAM

Detailed explanation-1: -Population change is governed by the balance between birth rates and death rates. If the birth rate stays the same and the death rate decreases, then population numbers will grow. If the birth rate increases and the death rate stays the same, then population will also grow.

Detailed explanation-2: -Lower fertility rates, coupled with increased life expectancies around the world, are creating an aging population.

Detailed explanation-3: -If a population exhibits a death rate that exceeds its birth rate, it is likely to decrease in size. There are four factors that determine the population growth: birth rate, death rate, emigration and immigration. If a population exhibits a higher birth rate than death rate, the population size will increase.