UNIT 4 LISTENING 6THVersión en línea Answer the questions according to the video. por Douglas Rivera 1 Oceans cover more than __________ of the earth's surface. Select one or more answers a 50 % b 60 % c 70 % 2 What is the longest river on earth? Select one or more answers a Amazon b Nile c Yangtze 3 Lakes need to survive ____________. Select one or more answers a Rains b Underground water c A and B 4 Why the dead sea is called like that? Select one or more answers a It's very salt b There's no life c There's no waves