Water Management and Quality Quiz (Ho)

What is a greywater system?

• A system that collects rainwater for drinking

• A system that reuses water from washing activities for irrigation

• A method to desalinate seawater

• A process to purify groundwater

How does crop rotation help in water management?

• By reducing soil erosion

• By increasing soil’s water-holding capacity

• By replacing synthetic fertilizers

• All of the above

Drip irrigation is effective because it:

• Floods fields to save time

• Delivers water directly to plant roots

• Uses seawater for crops

• Requires no maintenance

Rainwater harvesting techniques include:

• Infiltration ponds and rooftop collection

• Desalination plants

• Groundwater extraction

• Building dams

What is the purpose of groundwater recharge projects?

• To drain aquifers faster

• To refill underground water sources

• To increase saltwater intrusion

• To reduce rainfall

Desalination is controversial because:

• It is inexpensive

• It requires high energy and has environmental risks

• It only works in deserts

• It increases groundwater levels

The Hoover Dam provides:

• Flood control, irrigation water, and hydroelectric power

• Drinking water for oceans

• Groundwater recharge

• None of the above

The South-North Water Transfer Project in China aims to:

• Export water to other countries

• Divert water from water-rich to water-scarce regions

• Replace all rivers with pipelines

• Stop rainfall in the south

Water Demand Management (WDM) focuses on:

• Increasing water waste

• Conserving water by reducing demand

• Building more dams

• Ignoring water shortages

Smart irrigation systems save water by:

• Using weather data to adjust watering schedules

• Flooding fields randomly

• Removing all plants

• Increasing evaporation