People use oil as an important energy source. Many machines need oil like cars, airplanes and ships. But because the population is increasing, we use more oil than before, and it is becoming scarce. In the future, we may have no oil to use. What will the people do? And what will the world be like?
The prices of the oil may be higher, and countries will arguing because of the lack of energy. However, humans are smart and they know arguing and complaining won’t make the situation better. So… Continue