Water : An International Concern Flashcards
Three major sources of water
Ground water
surface water
Rainwater
It is a source of water that is under the land
surface.
ground water
This type of source is found on the surface
of the earth like ponds, rivers, etc.
Surface water
three states of water
solid, liquid, gas
Is the process by which
water changes from a
liquid to a gas or vapor. is the primary
pathway that water moves
from the liquid state back
into the water cycle as
atmospheric water vapor.
Evaporation
is essentially evaporation of water from
plant leaves
Transpiration
is the process
by which water vapor in the
air is changed into liquid
water. is crucial to the water cycle
because it is responsible for
the formation of clouds.
Condensation
is water
released from clouds in the
form of rain, freezing rain,
sleet, snow, or hail. It is the
primary connection in the
water cycle that provides
for the delivery of
atmospheric water to the
Earth.
Precipitation
-this is when ice and snow
change into liquid form due
to heat from Sun: they flow
into lakes, rivers and ocean
as well
Melting
Through the water cycle…
the water is filtered, refreshes, and recycled for future use
to holding water in a contained
area for a period of time.
water storage
is the formation of rock and soil that stores
enough water and supplies wells or springs.
aquifer
has a higher pH level than
that of plain tap water
Alkaline water
is the region or area whose runoff drains into a river, stream, lake channel, reservoir or ocean, and runs down through the soil.
watershed
It is also known as DRAINAGE
BASIN
watershed
a boundary or hills and mountain.
watershed divide
smaller bodies of water.
tributaries
a lake, stream or river.
lowpoint
the body of water.
headwater
watersheds are affected by??
climate, soil, and geology
percentage of salty water
97.5%
percentage of freshwater
2.5%
percentage of water locked in glaciers, icebergs, and polar ice caps
2.497%
Earth’s water available to use or drink
0.007%
freshwater found above ground
1/3
what are the major causes of water shortage?
climate change, increased human consumption, overuse and wastage of water, overuse of aquifers, natural calamities such as drought and floods
collecting water from rivers, lakes, and reservoirs
intake
to kill parasites, bacteria, and viruses
chlorine
What is lime
used to raise the PH level
What is alum?
regulates the PH level; removes unwanted taste & odor
manipulating electrostatic charges
coagulation & flocculation
purify the water
filtration
adds more chemical to kill the contaminants
disinfect
What is storage?
protects the water from re-contamination
To provide supply of safe drinking water to all consumers
distribution
