Can DNA Be Used to Store the World’s Computer Data? level = 9 1:01 How to Fight Climate Change? Plant a Trillion Trees level = 7 1:14 What do the lung do. level = 16 3:36 Accent list What's that? What did you do with it? What are you doing? How do you like it? What do you think? What did you say? Do you want to go? Do you want a cup of coffee? I've got to go. I'll let you know. Not yet. I'll talk to you later. level = 4 0:47 Rare Moon Landing Video to Be Sold on 50th Anniversary level = 8 1:28 Red Cross Program Helps Kenyans Fight Drug Addiction level = 8 1:20 Google to Launch Balloon Internet System in Rural Kenya level = 9 0:53 Methane Mystery on Mars: Could It Mean Life? level = 9 2:05
