the overpopulation

in 2015 in Bangladesh the mortality rate dropped to 3.8 and women had 2.2 average children.

https://www.youtube.com/watch?v=5x3MLNuj_Jg

https://youtu.be/YJjz7LVVl8c

blob:https://www.youtube.com/2a5ad605-fba3-481e-9251-1f4ef6e81288

it is believed that it will reach 12 million people by 2050

it took more than 80 years for developed countries to reduce fertility, Malaysia and South Africa took 34 years, Bangladesh 20 years, Iran 20 years.

They had 7 average children but 25% died

average 2.5 and it was 5 40 years ago

they are having children

transport, medicine and communication

The numbers have shot up from 1,000 million in the year 1800 to 7,400 million in the year 2016.

XVII century

high birth rate

high mortality

the overpopulation

fourth phase

Why is the population growing?

children born between 70 and 80

third phase

less birth

demographic growth slow

second stage

between 1750 and 1850

there was a demographic explosion

Improvements

hygiene

medicine

feeding

industrial revolution in the united kingdom

changes from peasants to workers

mass production of manufactures

science flourished:

first phase

bad medicine

bad nutrition

poor hygiene