DAMS

What is a dam?

• A wall that stops the flow of water

• A type of bridge

• An underground cave

• A tall tower

What is the tallest dam in the world?

• The highest dam in the world is Nurek Dam in Tajikistan

• Glen Canyon Dam in the United States

• Hoover Dam in the United States

• Karapuzha Dam in India

What type of dam is the Hoover Dam?

• Arch dam

• Solid gravity dam

• Arch-gravity dam

• Earth dam

What is one of the common purposes of dams?

• Generation of energy

• All of the options

• Flood control

• Recreation and aquatic beauty

What material did ancient dam builders like the Mesopotamians use?

• 
  

  Concrete

• Rocks or clay

• Wood

• 
  Metal

What function do turbines serve in dams?

• 
  Store water

• Regulate the river flow

• 
  Clean the water

• 
  Generate electricity

What type of energy can be generated from water thanks to dams?

• 
  Wind energy

• Solar energy

• 
  Hydroelectric energy

• Nuclear energy

What is the difference between natural and man-made dams?

• Natural ones are created by nature, while man-made ones are built by people

• 
  Natural ones are smaller than human-made ones

• Human-made ones are more resilient

• 
  Natural ones serve no specific purpose

What material are most man-made dams made of?

• Concrete

• Plastic

• Metal

• Wood

Why do some dams have a curved shape?

• To decrease water pressure

• To increase water pressure

• 
  For aesthetic reasons

• 
  To facilitate construction