LISTEN FOR DETAILS Listen to segments from the TV interview. Write the missing numbers (like 3 , 4 thousand ...) 1. Water covers 1 percent of the earth, but less than 2 percent is fresh water. 2. Right now we have almost 3 people on earth 3. In 30 years the population is going to be 4 billion 4. It takes 5 gallons of water to produce just one pound of beef. 5. Leaks can waste more than 6 gallons a year. Thats more than 7 percent of all the water we use.