This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
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a) i) Three benefits that Ghana could derive from nuclear energy are: • Increased electricity supply: Nuclear power plants can provide a stable and large-scale source of electricity, meeting growing energy demands. • Reduced reliance on fossil fuels: It can decrease dependence on imported fossil fuels, enhancing energy security and reducing greenhouse gas emissions. • Job creation: The construction and operation of nuclear power plants create high-skilled employment opportunities. ii) Two types of nuclear radiation are: • Alpha () radiation • Beta () radiation b) The scientific principle involved in each local industry: i) Kenkey production: Fermentation (specifically, lactic acid fermentation). ii) Soap production: Saponification (hydrolysis of fats or oils with an alkali). iii) Salt production: Evaporation (of water from brine or seawater). iv) Vegetable oil production: Extraction (mechanical pressing or solvent extraction). v) Gari processing: Fermentation (lactic acid fermentation of cassava). c) i) Two micronutrients in a soil are: • Iron (Fe) • Zinc (Zn) ii) Differentiation between broadcasting and side dressing methods of fertilizer application: • Broadcasting involves spreading fertilizer uniformly over the entire soil surface, either before planting or to an established crop. • Side dressing involves applying fertilizer in bands along the side of rows of growing plants, after the crop has emerged, to provide nutrients directly to the root zone. d) i) Differentiation between conductors and semiconductors: • Conductors are materials that allow electric current to flow easily due to a large number of free electrons. They have very low electrical resistance. • Semiconductors are materials with electrical conductivity between that of a conductor and an insulator. Their conductivity can be controlled by temperature or by adding impurities (doping). ii) Two appliances in the home which use semiconductors are: • Television • Smartphone Send me the next one 📸