6. Global population is expected to reac
8 billion by 2025
Population légale nogentaise
janvier 2009 : 30 985 habitants
7.
8. Selective culling can be used to control
animal populations, prevent influx of disease,
or protect animal or human populations.
9.
10.
11. Yet food is something that is
taken for granted by most
world leaders despite the
fact that more than half of
the population of the world
is hungry.
Norman Borlaug
12.
13.
14.
15. Our topic relevant to the audience
because we bring our topic well, we give
importance to the people especially in
the scauter area , because all we know
that the most populated area is the
scauter area thier are many people who
live there. And most important of all is
the concern of the people, to minimize
this continueng population.
16.
17.
18.
19.
20.
21.
22.
23. While population growth is at times a
beneficial thing for a species, there are many
factors that define when growth becomes
detrimental. When population growth becomes
"rapid" there is a great chance that the counter-
productive level has been reached. The most
accurate index is the balance between
population and sustainability.
24.
25.
26.
27. There are various reasons for population growth.
The obvious reason is that there are more births than
deaths. This is called natural increase. The global total
fertility rate is 2.5. This is much lower than in the past,
but still greater than the replacement level which
would lead to a stable population.
Another major reason is a result of people living
longer and lower infant mortality. This is due to
advances in medicine and healthier lifestyles. These
are causes for celebration. We can be thankful that
most people can live to see their grandchildren and
that the vast majority of children survive through the
formative years of their lives.
Migration results in population changes at
regional levels. Some nations, such as New Zealand,
receive more migrants than they send, while others
send more migrants than they receive.
