39. Nuclear Fusion

According to the essay, what is nuclear fusion?
1. The process of splitting a heavy atom into lighter ones.
2. The process of two light atoms joining to form a heavier one.
3. The burning of hydrogen gas like in a flame.
4. The same process used in today's nuclear power plants.
What is one major advantage of fusion energy over fossil fuels like coal and oil?
1. It is much easier to create on Earth.
2. It does not produce greenhouse gases.
3. It is already cheaper to produce.
4. It produces more radioactive waste.
Why is it so difficult to achieve nuclear fusion on Earth?
1. Hydrogen atoms are extremely rare and expensive.
2. The process produces dangerous greenhouse gases.
3. It requires containing gas at over 100 million degrees Celsius.
4. Scientists do not understand the process well enough.
The essay states that fusion fuel is easy to find. Where can it be found?
1. In the soil and rocks of the Earth.
2. In the core of the sun only.
3. In coal and oil deposits.
4. In water and other natural sources.
Based on the author's tone in the final paragraph, what is the overall outlook for fusion power?
1. It is a guaranteed success in the next few years.
2. It is promising but requires more development.
3. It is too dangerous to ever pursue.
4. It is a failed technology that will not work.