Water Sources and Management Quiz

What is considered the purest form of natural water on Earth?

• River water

• Groundwater

• Lake water

• Rainwater

Which method is one of the oldest for extracting groundwater?

• Dams

• Hand pumps

• Tube wells

• Wells

What is the main purpose of pebbles at the bottom of a well?

• To filter the water

• To decorate the well

• To prevent evaporation

• To store water

Why is water from ponds and lakes not safe for drinking?

• It is too hot

• It is too salty

• It contains mud, germs, and impurities

• It is too cold

What happens to rainwater in very cold places?

• It turns into fog

• It evaporates

• It becomes salty

• It freezes into crystals and falls as snow

What is the role of dams in water management?

• To check the flow of water and create reservoirs

• To increase water flow

• To purify water

• To desalinate water

How is river water made safe for drinking?

• By boiling

• By adding salt

• By filtering and purifying with chemicals

• By freezing

What is a major consequence of oil spills in water bodies?

• Increased water temperature

• Endangerment of aquatic life

• Improved water quality

• Increased fish population

What should not be immersed in rivers to prevent pollution?

• Idols of gods and goddesses

• Metal objects

• Plastic bottles

• Wooden logs

What is a key method to prevent water pollution from factories?

• Increasing production

• Throwing waste into rivers

• Proper waste management

• Using more chemicals