Results #1. Which gas is used to fill ballons ? Hydrogen Hydrogen Oxygen Oxygen Helium Helium Carbon dioxide Carbon dioxide #2. Which of the following is a non-poisonous snake ? Viper Viper Phyton Phyton Black mamba Black mamba Cobra Cobra #3. Which animal has the longest sleep hours ? Sloth Sloth Cow Cow Horse Horse Camel Camel #4. Ice cream melts when energy in the form of ... Is supplied ? Heat Heat Wind Wind Light Light Sound Sound Finish