Students use creative tools in the Seesaw app or website to complete classroom activities like "Global Warming"

1. estimate (n.) 估計 2. per (prep.) 3. percentage (n.) 4. livestock (n.) 5. agriculture (n.) 6. gallon (n.) 7. pound (n.) 8. grain-fed (n.) 9. manure (n.) 10. methane (n.) 11. nitrogen (n.) 12. fertilizer (n.) 13. patty (n.) 14. tonne (n.) 15. consumption (n.) 16. compensate (v.) 17. matter (v.) Questions: 1. On average, how much more meat do Americans eat than people from other countries? 2. According to the author's estimate, how many hamburgers do Americans eat per year? 3. What percentage of the world's landmass is used by livestock and agriculture that feeds those animals? 4. How many gallons of water does it take to make a single pound of grain-fed beef? 5. How many cows are there in the United States of America? 6. How much are manure do cows create than humans? 7. How much more does methane affect climate change than CO2? 8. How much nitrogen fertilizer is needed to grow feed for cows in America? 9. How many different cows can end up in a single hamburger patty? 10. How many tonnes of greenhouse gases does hamburger consumption create in the United States every year? 11. How much more expensive should a hamburger be in order to compensate for costs to the environment and human health? 12. How many people live in China and why does the author think that this matters?