GEF

Unit 3  |  Water Use and Human Water Systems 87 ASSESS YOUR UNDERSTANDING 1. Which pair of numbers below most accurately shows the percent of water use dedicated to agriculture in developed countries (left) and developing countries (right)? a. 80; 40 b. 40; 80 c. 8; 16 d. 12; 44 2. Renewable energy is: a. Electricity production using water b. Nonrenewable, carbon-based fuels c. Energy production using sources that sustain themselves d. Most common form of atmospheric carbon 3. What is hydropower? a. Electricity production using water b. Nonrenewable, carbon-based fuels c. Energy production using sources that sustain themselves d. Most common form of atmospheric carbon CHECK YOUR UNDERSTANDING 1. What is water efficiency and how has it changed over the past several decades? 2. How do we rely on dams? Why are they beneficial, and why do they cause harm? 3. Why is it important to develop sustainable use of water for agriculture? 4. What is groundwater and how is it threatened? 5. What are some of the challenges surrounding city and household water? 6. How has industrial water use become more efficient?