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Sources of Energy — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceSources of Energy5 Marks
Question
What are the disadvantages of using nuclear power?
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Answer

Various Disadvantages of Nuclear Energy:
  1. Nuclear radiation accidents: The radioactive waste coming from nuclear power plants is a great threat to Mother Nature and humans. The devastating effects of Chernobyl disaster still linger in our minds, where the grave effects on humans can be seen even today.
  2. Radioactive waste: Radioactive waste is any material, whether solid, liquid or gas that consists of a radioactive nuclear substance and the operators of the nuclear plant have determined that it’s a waste. Radioactive material is considered waste after it has spent more than 3 years in the reactor producing heat and electricity.
  3. Requires high initial capital costs: Another practical disadvantage of using nuclear energy is that it needs a lot of investment to set up a nuclear power station. Constructing a nuclear power plant requires massive capital outlay.
  4. Eutrophication leading to death of aquatic life: Eutrophication is extensive enrichment of the lake and other water bodies by nutrients, mostly due to runoff from land. This process causes dense growth of plant life eventually leading to death of aquatic life as a result of lack of oxygen. Radioactive waste can cause this problem.
  5. Impact on humans: The impacts of the Hiroshima and Nagasaki nuclear bombs during the Second World War are still rife in our memories. Today, the effects of these bombs are still occurring. Children in Japan are being born with defects. This makes a nuclear power plant more dangerous, especially in this day and age of high threat of terrorism. Terrorists can take advantage and deliberately cause nuclear meltdown.

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