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GE6351 Environmental Science and Engineering - Unit 5 Human population Lecture Notes
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Full Name :K.MANIVANNAN
College Name Department :VELAMMAL ENGINEERING CLG
Semester :3
Subject Code :GE6351
Subject Name :EVS
Study Material Description :
IT IS ABOUT UNIT5

UNIT- V

Human population and the Environment 

Population:- Group of individuals belonging to the same species which live in a given area at given time. 
Population density:- Number of individuals of the population per unit area ® per unit-volume. 

Parameters effecting population:- 
1. Birthrate (OR) Nationality:- Number of live births per 1,000 people in a population in a given year. 
2. Death Rate (OR) Mortality:- Number of deaths per 1000 people in a population in a given year 

Immigration:- It denotes the arrival of individuals from neighboring population. 
Emigration:- It denotes the disposal of individuals from the original population to new areas. 
Birth Rate = Number of births x 100 
O.P. x Number of years 
Infant Mortality = New born of babies died x 100 
Number of babies born x Number of year 
Growth rate = Change of population x 100 
O.P. x Number of year  

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