3. DEFINITION
.
1. A population is a summation of all the organisms of the
same group of species which live in a particular geographical
area and have the capability of interbreeding .
4. .
2 Population means the number of people in
a geographic area it can also be used for sub
group of people of animal.
5. In sociology population referes to a
collection of humans . Demography
is a social science which entatils the
statistical study of human
population .
6. POPULATION GENETICS
In Population genetics a sexual population is a set
of organisms in which any pair of members can be
breed together ,
7. WORLD HUMAN POPULATION
The word population is estimated by the united state
census bureau to be 7283 million . The U S Census bureau
estimates the 7 U S billion number was surpassed on 12th
march 2012 . According a sepearate estimate by the
United Nations Earth’s population execeed 7 US billion
october 2011.
8. DEMOGRAPHIC TRANSITION
Population pattern of less developed regions of the
world in the recent years has been marked by gradually
declining birth rates . This followed an earlier sharp
reduction is death rates. This transition from high birth
and death rates to low birth and death rates is often
referred to as demographic transition
9. CURRENT POPULATION OF INDIA
India with 1,289,377,904 (1,.28 billion ), people is the
second most popular country in the world while China is
one of the top with over 1,404,793,491 (1.40 billion
people)
11. REASON FOR POPULATION EXPLOTION
Some of the reason for india’s growing
population are poverty ,illiteracy, high
fertility rate, high rapid decline in the death
rate of mortality rate and the immigration
from Benglandesh and Nepal
