Uranium is the most widely used fuel by nuclear power plants for nuclear fission. Consider the following statements:1.After being used up in a nuclear power plant, the Uranium is still radioactive.2.Nuclear power is a bigger source of low-carbon electricity as compared to hydropower.Which of the statements given above is/are incorrect?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: B

Notes:

Statement 1 is correct:To make natural uranium more likely to undergo fission, it is necessary to increase the amount of uranium-235 in a given sample through a process called uranium enrichment. Once the uranium is enriched, it can be used effectively as nuclear fuel in power plants for three to five years, after which it is still radioactive and has to be disposed of following stringent guidelines to protect people and the environment.
Statement 2 is incorrect:Nuclear power is the second-largest source of low carbon energy used today to produce electricity, following hydropower.

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