Question

The advantages of harnessing energy derived from nuclear fusion are all of these EXCEPT

A. an immense amount of heat energy is generated.
B. a minute source (quantity) of raw material is required for the reaction.
C. no greenhouse gases are emitted during energy production.
D. the current energy input is smaller than the energy output.
E. relatively small amounts of radioactive waste are produced.

Answer 1

Among the presented advantages of nuclear fusion, the incorrect statement is that the current energy input is smaller than the energy output, as current fusion technology has not achieved a net positive energy output yet.

Step-by-step explanation:

The advantages of harnessing energy derived from nuclear fusion include the generation of an immense amount of heat energy, the requirement of only a small quantity of raw materials, no emission of greenhouse gases, and production of relatively small amounts of radioactive waste. However, the exception in the list provided by the student is the current energy input is smaller than the energy output (D). In reality, current fusion reactions require a significant amount of energy input to overcome the Coulomb barrier and initiate the reaction, which is greater than the energy output though the long term goal is to develop a net positive energy output from fusion.