Mayank Raj

India has all the major physical features of Earth i.e. mountains, deserts, plateaus, plains, islands etc. The different regions of the country have different soil types. Though India has an essentially monsoon-type of climate, there exists great variations in humidity and temperature across the country, Even the rains brought by the monsoon winds are unevenly distributed. Hence, each factor responsible for the type of flora and fauna in an area, namely land, soil, temperature, humidity and precipitation,are available across the length and breadth of the country. As a result, the flora and fauna found in India is diverse and rich.

Age Structure - It helps to ascertain the number of individuals of each age in population. It is useful in understanding and predicting population growth. For e.g. if most of the individuals in the population are below the age of first reproduction, then you can predict that in the near future, the population is likely to grow. However, if most of the individuals are beyond reproductive age, then you can expect the population to shrink. Death Rate/Mortality Rate - When you are talking about mortality, you are talking about death, and usually the death of many people. The death of one person could be considered a mortality, but the death of all people in a region or period of time can also be referred to as their mortality. The mortality rate is the number of people who die in a given year and area, divided by the population of that area. Birth Rate - The birth rate is usually given as the number of live births divided by the average population. This is termed the crude birth rate.This is also known as natality.