10 Questions
What proportion of the earth's surface is covered by water?
About 66%
Why is most of the available freshwater inaccessible?
It is locked in deep aquifers and glaciers
What is the process of obtaining freshwater from seawater called?
Desalinization
What is the primary reason for water scarcity in some countries according to the text?
Economic scarcity
Which African country is described as the 'water tower of east Africa'?
Ethiopia
What is the definition of safe drinking water?
Water that may contain impurities but does not pose significant health risks over a lifetime
Why can aquatic plants live in water?
Because sunlight can reach them as water is transparent in the visible spectrum
What are hydrophilic substances?
Substances that dissolve in water, like salts, sugars, acids, and alkalis
What are the functions of water mentioned in the text?
Water is a solvent for the uptake and transport of materials and is a reactant in many biochemical reactions
What are some impurities found in safe drinking water mentioned in the text?
Magnesium, calcium, carbonates, and bicarbonates
Test your knowledge about the availability and accessibility of freshwater resources on earth. Learn about the challenges of accessing drinkable water and the distribution of water on the planet.
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