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Water Wise! (Library Binding)
9780778799047Crabtree Publishing CompanyMSRP: HK$239.17HK$224.79What happens to water all over the world? Did you know... - Only 3% of the world's water is drinkable. - It takes 264 gallons (1,000 liters) of water to produce two pounds (1 kg) of potatoes. - You... -
Is There a Future for Fossil Fuels? (Library Binding)
9780778729235Crabtree Publishing CompanyMSRP: HK$239.17HK$224.79Natural gas, oil, and coal are finite resources, and their use contributes to deadly smog and global warming. The Future of Fossil Fuels follows the world's dependence on these resources and explains...