1. What would happen if dwellers in this city didn't save energy ?
If dwellers in this city didn't save energy, we would run out of energy which is vital to support our lives.
2. What if local authorities didn't control dynamite fishing ?
If local authorities didn't control dynamite fishing, the fishes diversity would be threatened.
3. What if oil tanker leaked ?
If oil tanker leaked, water around leaking area would be polluted.
4. What if poacher killed polar bear for fur ?
If poacher killed polar bear for fur, Polar bear would be extincted some day.
5. What would happen if more and more people used motobikes and cars ?
If more and more people used motobikes and cars, the environment, especially the air would be seriously damaged.
6. What if the Earth were hit by a large comet ?
If the Earth were hit by a large comet, it would explode in many small pieces
7. What if more hotels were built in national parks ?
If more hotels were built in national parks, it would loose the park's sense of tranquil beauty