Water
9 questions tagged Water — spanning every one of the seven Ws.
Where is the largest lake?
The Caspian Sea, bordered by five countries, is the world largest lake by far, covering about 371,000 square kilometers — bigger than all the North American Great Lakes combined.
Where is the largest waterfall by volume?
Inga Falls on the Congo River carries the greatest average flow of any waterfall on Earth.
Where is the saltiest body of water on Earth?
The saltiest body of water is Don Juan Pond in Antarctica, so salty it almost never freezes; among large lakes, the Dead Sea and Lake Assal are the saltiest famous examples.
How Do Canal Locks Raise and Lower Boats?
A canal lock is a chamber with gates at each end; filling or emptying it with water lifts or lowers a boat between different water levels.
Which country has no permanent rivers?
Saudi Arabia is the largest country in the world with no permanent rivers; it relies on groundwater and desalinated seawater instead.
Why does the Dead Sea have such extreme salinity?
The Dead Sea is extremely salty because water flows in but has no outlet, so evaporation leaves salts behind. That makes it one of the saltiest bodies of water on Earth.
What is an aquifer?
An aquifer is an underground layer of rock, sand, or gravel that stores and transmits groundwater. Many wells and springs draw water from aquifers.
What is a desalination plant?
A desalination plant is a facility that removes salt from seawater or brackish water to make fresh water.
Why do hippos spend so much time in water?
Hippos spend much of the day in water to keep their huge bodies cool and protect their sensitive skin from the sun. Water also helps support their weight, which makes resting easier.