Freshwater is water containing less than 1% salt, including water found on the Earth's surface and underground. There are three types of freshwater: lentic water found in still bodies like ponds and lakes; lotic water in flowing bodies like streams and rivers; and wetlands like swamps and marshes saturated with water. Freshwater covers about 3% of total water on Earth, with about 0.3% as surface water and the rest as ice caps and glaciers or groundwater. Problems affecting freshwater include loss of habitat, pollution, and overuse of resources.

2. Freshwater
 is a naturally occurring water on the Earth’s surface and
underground and typically contains less than 1% sodium
chloride or low in salt concentration.
 It can be defined as water with less than 500 part per
million(ppm) of dissolved salts.

3. 3 types of Freshwater
1. Lentic – refers to a still water like ponds, lakes, pools
and the like
PONDS

4. Laguna de Bay
Lanao Lake
LAKES
Taal Lake

5. 2. Lotic – refers to flowing water like streams, river and
springs.
STREAMS

6. Mindanao River
Cagayan River
RIVER

7. Malumpati Cold Springs: Antique
Ardent Hot Spring: Camiguin
SPRINGS

8. 3. Wetlands – land area that is saturated with water
like swamps, marsh, fens and bogs.
SWAMPS
MARSH

11.  Freshwater nearly covers 3% of the total Earth’s water,
0.3% is surface water, 70% is ice caps, glaciers that are
found in polar regions and nearly 30% is groundwater.
 Ice caps and glaciers are the huge storehouse of
freshwater.
 According to the book Environment, Agriculture and
Natural Resources Management Basic Concepts: An
Information Kit(1992), the Philippines has 0.9 million
hectares of freshwater.

12. Where does freshwater come?
 Freshwater comes from the rain, mist and snow that
form in the atmosphere through precipitation.
Evaporation
Condensation
Precipitation
Transpiration
Run-off
Infiltration
Groundwater

13.  PROBLEMS
 Factors that affect freshwater:
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Loss of native plants and animals
Eutrophication of lakes
Affects water quality
Increased silt sedimentation of freshwater bodies
High level of organic and other pollutants
Over-population

14.  SOLUTIONS
 Don’t dispose waste into water.
 Use water properly in your daily consumption.
 Fix leaking pipes and drainage.
 People should be aware of the water problem
because even though the ocean contains
freshwater ,problems like pollution, flood, and
water contamination will occur.

15. Government Prevention
 Republic Act No. 9275
 An act providing for a comprehensive water quality
management and for other purposes.
 known as “Philippine Clean Water Act of 2004”
 Republic Act No. 9512
 An act to promote environmental awareness through
environmental education and for other purposes.
 Known as “Environmental Awareness and Education Act
of 2008

17. QUIZ

18. 1. What is Freshwater?
2. What are the 3 types of freshwater?
3-5. Give 3 examples of freshwater areas in the
Philippines.
6. Out of all water on Earth, what percentage does
freshwater covers?
7. What is the process wherein rain, mist, and snow fall
from the atmosphere?
8-9. Give 2 problems that affect freshwater.
10. What republic act is known as “Philippine Clean
Water Act of 2004”?

19.  http://www.youtube.com/watch?v=Pz6AQXQGupQ
 http://www.youtube.com/watch?v=otrpxtAmDAk
 http://lifestyle.iloveindia.com/lounge/types-of-water-
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10825.html
http://www.senate.gov.ph/republic_acts/ra%209512.p
df
http://www.lawphil.net/statutes/repacts/ra2004/ra_92
75_2004.html
http://en.wikipedia.org/wiki/Fresh_water
http://ww2010.atmos.uiuc.edu/%28Gh%29/guides/mt
r/hyd/smry.rxml
Jan. 23,2013