Water Usage and Management Issues

Which city was mentioned as potentially being the first major city in the world to run out of water?

• London

• Mexico City

• Cape Town

• Tokyo

What percentage of Earth's total water is liquid freshwater that humans rely on for survival?

• 97%

• 2%

• 1%

• 50%

Compared to Kuwait, how much more water per person does Canada have in terms of water resources?

• Twice as much

• 10 times as much

• 100 times as much

• 10,000 times as much

What was Mexico City originally built upon by the Aztecs?

• A mountain range

• A giant lake

• A desert oasis

• A vast forest

What is a negative consequence of over-pumping groundwater from aquifers, as seen in Mexico City?

• Increased rainfall

• Soil expansion

• The city sinking

• Improved water quality

What percentage of liquid freshwater is used for personal activities like drinking, washing, and toilet flushing?

• 8%

• 22%

• 70%

• 98%

Which of these items requires the most water to produce?

• A glass of beer

• A cup of coffee

• A cotton T-shirt

• A quarter-pound hamburger

Why is growing alfalfa in arid regions like Southern California considered an inefficient use of water?

• Alfalfa is not a profitable crop

• The water used for alfalfa is transported over long distances

• The true cost of water is not reflected in its price

• Alfalfa requires more water than other crops

What is a significant problem with water distribution systems in many cities, such as Mexico City?

• Water is too expensive for most residents

• There are not enough water treatment plants

• A large amount of water is lost due to leaky pipes

• Water sources are too far from the city

Which of the following is NOT a major user of water from the Colorado River, as mentioned in the video?

• Cities in the southwestern United States

• Agricultural farmlands

• The beer industry in Mexicali

• The wine industry in South Africa