Answer :
Final answer:
Ghana can benefit from nuclear energy through enhanced energy security, reduced greenhouse gas emissions, and economic growth. Important aspects of local industries include specific scientific principles involved in soap, salt, and oil production processes. Additionally, understanding soil nutrition, seed viability, and accurate measurement in scientific practices are crucial for agricultural and industrial advancement.
Explanation:
Benefits of Nuclear Energy for Ghana
Ghana can reap several benefits from adopting nuclear energy:
- Energy Security: Nuclear energy provides a stable and reliable source of electricity, reducing dependence on fossil fuels and enhancing energy security.
- Environmental Benefits: Utilizing nuclear energy can significantly reduce greenhouse gas emissions compared to traditional coal or oil plants, helping to combat climate change.
- Economic Growth: The establishment of nuclear power plants can create jobs in construction, operation, maintenance, and research, boosting local economies.
Types of Nuclear Radiation
There are three primary types of nuclear radiation:
- Alpha radiation
- Beta radiation
- Gamma radiation
Scientific Principles in Local Industries
The scientific principles involved in local Ghanaian industries include:
- Soap Production: This involves the saponification process where fats react with an alkali to form soap and glycerin.
- Kenkey Production: This involves fermentation which promotes the growth of beneficial bacteria to break down starches.
- Salt Production: The process typically involves evaporation to remove water and crystallize salt from seawater or brine.
- Vegetable Oil Production: This is achieved through the extraction process that separates oil from seeds or nuts using mechanical or chemical methods.
- Gari Processing: This involves the fermentation and subsequent drying of cassava for consumption.
Micronutrients in Soil
Two important micronutrients in soil are:
- Iron
- Zinc
Differentiating Fertilizer Application Methods
Broadcasting involves spreading the fertilizer evenly over the soil surface, while side dressing implies applying fertilizer in bands along the sides of planted crops.
Conductors vs. Semiconductors
Conductors are materials that allow the flow of electricity with minimal resistance (like copper), while semiconductors have variable conductivity which can be altered by adding impurities (like silicon).
Appliances Using Semiconductors
Two common household appliances that use semiconductors are:
- Computers
- Televisions
Viable Seed Selection
Three conditions to consider when selecting viable seeds include:
- Germination rate
- Seed size and weight
- Resistance to disease
Characteristics of Good Seeds
Two characteristics of good seeds are:
- High viability
- Purity (free from weeds and diseases)
Ohm's Law
Ohm's law states that V = IR, where V is the potential difference, I is the current, and R is the resistance.
Calculating Potential Difference
For a resistor with a resistance of 12.5 ohms and a current of 10 A:
Potential Difference (V) = Current (I) x Resistance (R) = 10 A x 12.5 ohms = 125 V.
Pandemic vs. Epidemic
An epidemic refers to a sudden increase in disease cases in a specific area, while a pandemic extends across multiple countries or continents.
WHO's Role in COVID-19 Management
Two roles of the WHO in managing COVID-19 are:
- Providing guidelines for disease prevention
- Coordinating international response and research efforts.
Instruments for Measuring Liquid Volume
Two instruments used for accurately measuring liquid volume are:
- Graduated cylinders
- Volumetric flasks
Importance of Accurate Measurement
Accurate measurement is essential for:
- Ensuring safety in experiments and processes.
- Maintaining consistency in products.
- Validating scientific results and findings.
