Explain nuclear fusion and its role in power generation
What will be an ideal response?
Nuclear fusion is the process responsible for the immense amount of energy that the sun generates and the force behind hydrogen and thermonuclear bombs. It involves forcing together small nuclei of lightweight elements under extremely high temperatures and pressure. Because fusion requires extremely high temperatures, researchers have not successfully developed nuclear fusion for use in commercial power generation. If we find a way to control fusion in a reactor, we could produce vast amounts of energy using water as a fuel. This process would create only low?level radioactive waste, without air pollution or the risk of dangerous accidents, sabotage, or weapons proliferation.
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A(n) ____________ is a substance composed of identical particles called ______________ that cannot be broken into
simpler substances by chemical means. Fill in the blank(s) with the appropriate word(s).
Animals such as earthworms and millipedes that feed on dead organic matter are ________
A) consumers B) decomposers C) carnivores D) producers E) herbivores
Lateritic soils
A. are kept soft and workable by the action of sun and rain. B. are rich in nutrients. C. are common soils in tropical rain forests. D. All of the choices are correct.
Judge the following sentence according to the criteria given below: Scientists have proposed that serpentinization could have fueled Earth's first life BECAUSE it occurs across large areas and can be sustained for long periods of geologic time
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.