The relationships of population with need of clean water and clean air The relationships of population with food needs The relationships of population with the availability of land The Effect of population increase on environmental damage

1. 7 Grade
After Mid Term 2nd Semester
By
Mahbub Masduqi, S.Si.

2.  No student allowed to use laptop, tab or the other
electronic equipment in the class,
except : 15 minutes remain before class finished, or
when allowed by teacher in some cases
 No food in the class, drink allowed
 Because student has few times to study biology in
the boarding, so all students have to
understand/memorize matters in the class
 In each learning there will be pre test (lesson last
week and today) or post test (lesson today) or both

3.  The relationships of population with need of
clean water and clean air
 The relationships of population with food
needs
 The relationships of population with the
availability of land
 The Effect of population increase on
environmental damage

4.  Describe the consequences of deforestation
and its effects on environmental degradation
efforts to address them
 Explain the influence of water, air, and soil
pollution; Also, land pollution
 Propose how to overcome pollution and
environmental damage

6. More
people
Need
More clean
water

7.  Human and animal :
Water Helps Your Body Remove Waste (through respiration, urination, and
defecation)
Water Aids in Digestion (ex: saliva)
Water Prevents From Becoming Dehydrated
 Domestic:
cooking, washing clothes, etc
 Agriculture:
watering plants because plants need water in photosynthesis process, etc
 Industry :
washing (laundry, car), power plant (hydroelectric), packaging bavarage, etc
 etc

8.  Lack of clean water, flood, garbage

9.  Indonesia is the
fourth most
populous country in
the world and
Southeast Asia’s
largest economy,
with 258 million
inhabitants.
Average income
levels have
increased
dramatically over
the last 20 years,
yet more than 27
million Indonesians
lack safe water,
and 51 million lack
access to improved
sanitation
facilities.
 (2014)

10.  Look for the problems of
freshwater availability in
indonesia, write in your
book and give solutions

11. The relationships of population with need
of clean air

12.  Clean air means uncontaminated air, so that the air is
well maintained.

13.  Every living creature needs oxygen for
breathing. Likewise, humans as living
creatures also need oxygen for their lives.
Humans get the required oxygen through
clean air.
 Clean air means uncontaminated air, so that
the air is well maintained.
 With clean air we will breathe healthy

14.  In a day
youth
requires
1.37 kg of
food, 2.05
kg of water,
and 13.64
kg of air,
 Human need
air more than
water and
food

18.  Breathe (O2)
 Photosynthesis (CO2)
 wind power plant
 Utilization of energy like a sailboat
 Spored spread
 As a Conditioning
 Absorbs solar radiation
 As a communication network
 Protect the earth from objects in outer space

20.  Look for information of
some air functions below
 Choose 2 of 5 topics
1. wind power plant
2. Utilization of energy like a sailboat
3. Spore/seed spread
4. Absorbs solar radiation
5. Protect the earth from objects in outer
space

22.  Which place do you want to stay in?
 Why do you choose that?
 Land serves the foods

23.  How to balance productivity of food with population growth

24.  If immigration and emigration remain stable, the population size
will depend on the relative numbers of births and deaths.

25.  Carbohydrate (source of energy) ex: rice
 Protein (source of body growth) ex : bean
 Lipid (reserve of food) : meat of beef
 Vitamin and mineral (considered essential nutrients) ex
: banana

26.  Look for the 5 kinds of food
that contain the following
below!
1. Carbohydrate
2. Protein
3. Lipid
4. Vitamin and Mineral
How to increase productivity
of food?

27. Air and water pollution
Deforestation
Depletion of ozone layer
Extinction of species
Land/soil degradation
Global warming and climate change
etc

28.  As in the case of air pollution,
the increasing population calls
for increasing numbers of
factories and cars. factories and
automobiles dump gas leftover
from combustion
 Human and factories lead
to various kinds of
pollution in water pollution
example garbage and
waste. In agriculture
farming lead to pollution
by pesticides.

29.  Forests are an
important natural
resource.
 They have moderate
influence against
floods, prevent
erosion, conserving
water, regulating
water cycle, etc.
 DEFORESTATION (clearance, or clearing) :
the removal of a forest or stand of trees
where the land is thereafter converted to a
non-forest use.
 Examples of deforestation include conversion
of forestland to farms, ranches, or urban use

30. Ultraviolet radiation is absorbed by OZONE LAYER
The Ozone layer has been gradually ruined by the effect of the CFCs.
These CFCs were used as solvents, refrigerants, aerosol propellants, and to
blow foam plastics.

32.  On the global basis, the
soil degradation is caused
primarily by overgrazing
(35%), agricultural
activities (28%),
deforestation (30%), over
exploitation of land to
produce fuel-wood (7%),
and industrialization (4%).
 SOIL DEGRADATION : a
change in the soil health
status

34.  What’s the meaning of global warming?
 Give information about climate change!

35. Global warming
 https://www.youtube.com/watch?v=oJAbATJ
Cugs
Climate change, green house effect
 https://www.youtube.com/watch?v=G4H1N_
yXBiA
Depletion of ozone layer
 https://www.youtube.com/watch?v=aU6pxS
NDPhs

36. Deforestation
 https://www.youtube.com/watch?v=Ic-
J6hcSKa8
Air pollution and green house effect
 https://www.youtube.com/watch?v=e6rglsLy
1Ys
Water pollution
 https://www.youtube.com/watch?v=HQTUW
K7CM-Y