1. I'm not sure about this one but I think its false, not all energy resources are limited to one country - thus don't need to be traded. Like I said, I'm not very confident with this answer.
2. False, The amount of neutrons in an atom does not change its identity. The variation of protons will change the identity though.
3. False, The splitting of an atom's nucleus is called Nuclear Fission, not Fusion
4. False, This was meant to mess you up, 1000 milliliters equals 1 liter (since "milli" means 1000)
5. False, 2 meters would be closer to 6 feet
6. False, 100 centimeters equals 1 meter