gLOBAL iSSUES - WATER Flashcards
wATERess
Why is water important?
human survival (drinking and irrigation)
development of economy
protection of the environment
Define Fresh Water
water that has low concentration of dissolved salts and other solids
What is the source of almost all freshwater?
precipitation (mist, rain, snow) from the atmosphere
Earth is called ___________
‘water planet’
______% of water on Earth is salt water and
______% is fresh
97 % of water on Earth is salt water and
3 % is fresh
Where is the majority of freshwater on Earth found?
Polar Ice Caps
What ___% of Earth’s freshwater is actually available for humans to access directly? where is it found?
1%
lakes and rivers
T/F - freshwater is a renewable resource. Explain
True - limited by renewed by the water cycle
Sources of Freshwater
Surface Freshwater (rivers/stream, lakes/ponds)
Groundwater
Desalination
Frozen water
What is desalination
artificial process (Man-made) process of filtering salty water to fresh water
Define Salinization
the accumulation of soluble salts by the evaporation of water.
Ten of Asia’s largest rivers flow from
Himalayan Glaciers
Where do you find ground freshwater?
beneath Earth’s surface
