Car manufacturers and governments have eagerly been seeking a replacement for the internal-combustion engine as an automobile's main source of power. The most promising alternative source is currently the hydrogen-based fuel-cell engine which uses electri

The article states that the fuel cell engines will replace the internal-combustion engines in the future because of its advantages, and provides three reasons of support. However, the professor contends that the oil that we use in engine right now is finite resource, but the reading is so optimistic about the hydrogen resource and refutes each of the Author's reasons.

First, the reading asserts that the internal-combustion engine rely on petroleum, which is a finite resource. While, the hydrogen is a renewable resource. The professor opposes this point by saying that hydrogen is not easily available as a fuel. According to the professor even though hydrogen is coming from the water, but we can't get it easily from water drops. He adds that also, we need to keep the hydrogen in frozen temperature all the time.

Second, the article claims that the fuel cell engines will solve the pollution problem. On the other hand, the professor explains that using the hydrogen will not solve the problem. He adds that the large amount of hydrogen that needed produced only through burning plants and that will cause pollution to the environment.

Third, the reading posits that the fuel cell engines will will be competitive because the reduce the cost of operating them. The professor says there is no cost saving but the cost of operating will become higher. He adds that the fuel cell engines depends on platinum which is a very expensive mineral that couldn't be replaced by any other mineral to operate these engines.