1. Population Growth

2. Population
refers to a group of organisms
of the same kind or specie living
in the same place at the same
time.
A population may increase or
decrease due to birth, death,
immigration and migration.

3. Population Growth
• It is the change in a population over time,
and can be quantified as the change in the
number of individuals of any species in a
population using "per unit time" for
measurement.
• In demographics, population growth rate
(PGR) is the rate at which the number of
individuals in a population increases in a
given time period as a fraction of the initial
population.

8. Just a by looking at
the picture, we can say
that the Philippines has
big population. This big
population is brought
about by the rapid
population growth in
the country.

9. Countries with the Largest Population
A United Nations
report in 2009
revealed that the
Philippines ranks
7th
among Asian
Countries with big
population. At
present, the
Philippines ranks
12th
among the
most populous
countries in the
world.

10. Factors that Affect
the Population
Growth

11. 1. The birth rate
exceeds the death
rate.
The population
naturally increases if
the number of births
is greater than the
number of births at
any given of time or
if the death rate is
slower than the birth
rate.

12. • Birth Rate or Fertility Rate
It refers to the number of births per 1000
people per year.
Formula:
B.R.= Number of births within a year
Total population within a year
B.R. = 1,766,440
76,504,077
X 1000
X 1000 =23.09

13. Death Rate or Mortality Rate
• It refers to the number of people who
died per 1,000 people in a given year.
D.R.= Number of deaths within a year
Total population within a year
D.R.= 366,931
76,504,077 =
X 1000
X 1000 =4.80
In the Philippines, the death rate continues
to decline due to improved health and
sanitation, health care and improved
standard of living.

15. 2. The development in Science and Technology
has made the life expectancy of Filipinos longer.
• With the help of the
Department Science and
Technology (DOST), the
agency tasked by the
government to develop
pharmaceutical products
for priority health
problems,better health and
long life are attained.

16. 3. Some beliefs and practices of the
Filipinos also influence the
population growth.
• Filipinos believed that children are
blessings to the family and that more
children mean more blessings. I the
rural areas where the main livelihood is
agriculture, to have children means
more hands to help in tilling the field,
harvesting, and engaging in other
means of livelihood.

18. Problems on Population Growth
1. Food Shortage
If there are more people, more food
supply is needed. When there is food
shortage, this means there is not enough
food supply to sustain the needs of the
people
 Panic Buying
 Hoarding
 Prices of commodities also go up

21. 2. Water Shortage
For more people, naturally more water
is needed. In a place where the population
is big, there is water problem.
3. Housing Problem
There are only a few families who own
their houses and lots. At times, in crowded
areas, people build their houses along the
railroads, riverbanks and even along
sidewalks. These people are called
informal settlers.

24. 4. Unemployment
• Too many people compete with one
another for the limited jobs that are
available. Unfortunately, the government
cannot provide enough jobs for every job
applicant. Many applicants end up
underemployed-working in jobs way below
their educational qualifications and
attainment.

27. 5. Peace and Order
• Due to big population, unemployment,
hunger, homelessness, sickness and
frustrations, many people resort to
illegal and criminal acts just to
survive. This leads to a rise in
criminality that endangers the peace
and security of the country.

29. 6. Health Problems
1. Malnutrition due to lack of food and food
nutrients
2. Unsanitary surroundings due to
indiscriminate garbage disposal
3. Poor hygiene and poor health
4. Presence of diseases like bronchitis
among babies, diarrhea and tuberculosis

31. 7. Garbage Problem
When there are many people
producing garbage, we need more space
for garbage. Rotting garbage gives off
poisonous gas called methane. This adds
to air pollution. Heaps of garbage that
easily decay are biodegradable and those
that do not are non-biodegradable like
pieces of plastics or plastic bags. Plastic
materials clogging in “ esteros” and canals
contribute to flooding.

32. 8. Pollution
In crowded communities, many people
are prone to polluted air, contaminated
water and noisy environment.
As the population grows, more
industries and factories are built. These
give off harmful gases and chemicals like
nitrogen oxide, carbon monoxide, and
lead.
Water is also polluted in crowded
communities.

34. 9. Education- To help the citizens of our
country, the government provides free
elementary and secondary eduation to
everyone.

35. Solutions to Problems on
Population Growth
 Development programs to increase food
production,provide potable water supply, construct more
road and bridges.
 Promoting health and wellness of the people by building
more hospitals, health clinics and render effective health
services.
 The government has carried out housing programs on
low cost housing in cooperation with the National
Housing Authority.
 To protect our environment,the government has initiated
environment protection projects like Pasig Rehabilitation
Program and Haribon Foundation Program. Congress
has passed laws on environmental care and protection
such as Philippine Clean Water Act and Clean Air Act.