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Which of the following is not a fossil fuel?- a)Coal
- b)Crude oil
- c)Natural gas
- d)Uranium
Correct answer is option 'D'. Can you explain this answer?
Which of the following is not a fossil fuel?
a)
Coal
b)
Crude oil
c)
Natural gas
d)
Uranium
|
Chiwendu Udeh answered |
Explanation:
Fossil fuels are natural resources that are formed from the remains of plants and animals that lived millions of years ago. These fuels are non-renewable and include coal, crude oil, and natural gas.
Not a fossil fuel:
- Uranium: Uranium is not a fossil fuel. It is a radioactive metal that is used as a source of energy in nuclear power plants. Unlike coal, oil, and gas, uranium is not formed from the decayed remains of ancient organisms. Instead, it is a naturally occurring element found in the Earth's crust.
In summary, while coal, crude oil, and natural gas are all examples of fossil fuels, uranium is not classified as a fossil fuel due to its different origin and use in nuclear energy production.
Fossil fuels are natural resources that are formed from the remains of plants and animals that lived millions of years ago. These fuels are non-renewable and include coal, crude oil, and natural gas.
Not a fossil fuel:
- Uranium: Uranium is not a fossil fuel. It is a radioactive metal that is used as a source of energy in nuclear power plants. Unlike coal, oil, and gas, uranium is not formed from the decayed remains of ancient organisms. Instead, it is a naturally occurring element found in the Earth's crust.
In summary, while coal, crude oil, and natural gas are all examples of fossil fuels, uranium is not classified as a fossil fuel due to its different origin and use in nuclear energy production.
Which of the following is a renewable source of energy?- a)Natural gas
- b)Biomass
- c)Petroleum
- d)Coal
Correct answer is option 'B'. Can you explain this answer?
Which of the following is a renewable source of energy?
a)
Natural gas
b)
Biomass
c)
Petroleum
d)
Coal
|
|
Chiwendu Udeh answered |
Renewable Source of Energy: Biomass
Biomass is a renewable source of energy because it is derived from organic materials such as plants, crop residues, wood, and animal waste. These materials can be replenished through natural processes, making biomass a sustainable energy source.
Advantages of Biomass
- Renewable: Biomass can be continuously produced through natural processes.
- Carbon Neutral: When burned, biomass releases carbon dioxide, but the carbon emitted is equal to the amount absorbed by plants during growth, making it a carbon-neutral energy source.
- Versatile: Biomass can be used for producing heat, electricity, and transportation fuels.
- Waste Reduction: Biomass energy can help in managing organic waste materials by converting them into energy.
Types of Biomass Energy
- Biofuels: Such as biodiesel and ethanol, which can be used as substitutes for gasoline and diesel.
- Biogas: Produced through the anaerobic digestion of organic materials, used for heating and electricity generation.
- Wood Energy: Biomass derived from wood sources, used for heating and electricity generation.
- Biochar: Charcoal produced from biomass, used for soil amendment and carbon sequestration.
Challenges of Biomass Energy
- Land Use: Large-scale biomass production may require significant land resources, potentially competing with food production.
- Emissions: Inefficient biomass combustion can lead to emissions of pollutants such as particulate matter and volatile organic compounds.
- Resource Availability: The availability of biomass resources may vary depending on factors such as climate, soil quality, and land use practices.
In conclusion, biomass is a renewable source of energy that offers a sustainable alternative to fossil fuels, with the potential to reduce greenhouse gas emissions and promote a more environmentally friendly energy system.
Biomass is a renewable source of energy because it is derived from organic materials such as plants, crop residues, wood, and animal waste. These materials can be replenished through natural processes, making biomass a sustainable energy source.
Advantages of Biomass
- Renewable: Biomass can be continuously produced through natural processes.
- Carbon Neutral: When burned, biomass releases carbon dioxide, but the carbon emitted is equal to the amount absorbed by plants during growth, making it a carbon-neutral energy source.
- Versatile: Biomass can be used for producing heat, electricity, and transportation fuels.
- Waste Reduction: Biomass energy can help in managing organic waste materials by converting them into energy.
Types of Biomass Energy
- Biofuels: Such as biodiesel and ethanol, which can be used as substitutes for gasoline and diesel.
- Biogas: Produced through the anaerobic digestion of organic materials, used for heating and electricity generation.
- Wood Energy: Biomass derived from wood sources, used for heating and electricity generation.
- Biochar: Charcoal produced from biomass, used for soil amendment and carbon sequestration.
Challenges of Biomass Energy
- Land Use: Large-scale biomass production may require significant land resources, potentially competing with food production.
- Emissions: Inefficient biomass combustion can lead to emissions of pollutants such as particulate matter and volatile organic compounds.
- Resource Availability: The availability of biomass resources may vary depending on factors such as climate, soil quality, and land use practices.
In conclusion, biomass is a renewable source of energy that offers a sustainable alternative to fossil fuels, with the potential to reduce greenhouse gas emissions and promote a more environmentally friendly energy system.
Which of the following is a major environmental impact of energy use?- a)Increased biodiversity
- b)Reduced pollution
- c)Global warming
- d)Enhanced natural habitats
Correct answer is option 'C'. Can you explain this answer?
Which of the following is a major environmental impact of energy use?
a)
Increased biodiversity
b)
Reduced pollution
c)
Global warming
d)
Enhanced natural habitats
|
Deepak Iyer answered |
Global warming is a major environmental impact of energy use. It is caused by the release of greenhouse gases, such as carbon dioxide, from burning fossil fuels.
Energy crises occur due to:- a)Insufficient energy sources
- b)Excessive energy production
- c)Overpopulation
- d)Inadequate technological advancements
Correct answer is option 'A'. Can you explain this answer?
Energy crises occur due to:
a)
Insufficient energy sources
b)
Excessive energy production
c)
Overpopulation
d)
Inadequate technological advancements
|
|
Deepak Iyer answered |
Energy crises occur due to insufficient energy sources, which can lead to blackouts, energy rationing, and economic instability.
Which of the following is an example of energy conversion?- a)Heating water using a solar panel
- b)A light bulb producing light
- c)A fan rotating to create air movement
- d)Charging a battery with an electric current
Correct answer is option 'C'. Can you explain this answer?
Which of the following is an example of energy conversion?
a)
Heating water using a solar panel
b)
A light bulb producing light
c)
A fan rotating to create air movement
d)
Charging a battery with an electric current
|
|
Deepak Iyer answered |
A fan rotating to create air movement is an example of energy conversion. Electrical energy is converted into mechanical energy to produce the fan's movement.
Which of the following is a non-renewable source of energy?- a)Solar energy
- b)Geothermal energy
- c)Natural gas
- d)Wind energy
Correct answer is option 'C'. Can you explain this answer?
Which of the following is a non-renewable source of energy?
a)
Solar energy
b)
Geothermal energy
c)
Natural gas
d)
Wind energy
|
|
Deepak Iyer answered |
Natural gas is a non-renewable source of energy extracted from underground reservoirs. It consists mainly of methane and is commonly used for heating and electricity generation.
The greenhouse effect is primarily caused by:- a)Ozone depletion
- b)Industrial waste
- c)Burning fossil fuels
- d)Deforestation
Correct answer is option 'C'. Can you explain this answer?
The greenhouse effect is primarily caused by:
a)
Ozone depletion
b)
Industrial waste
c)
Burning fossil fuels
d)
Deforestation
|
|
Deepak Iyer answered |
The greenhouse effect is primarily caused by burning fossil fuels, which release greenhouse gases that trap heat in the Earth's atmosphere, leading to global warming.
Which of the following energy sources is considered environmentally friendly?- a)Coal
- b)Nuclear power
- c)Solar power
- d)Natural gas
Correct answer is option 'C'. Can you explain this answer?
Which of the following energy sources is considered environmentally friendly?
a)
Coal
b)
Nuclear power
c)
Solar power
d)
Natural gas
|
|
Deepak Iyer answered |
Solar power is considered environmentally friendly because it harnesses energy from the sun without producing greenhouse gas emissions or pollution.
What is the main environmental concern associated with burning fossil fuels?- a)Depletion of the ozone layer
- b)Acid rain formation
- c)Water pollution
- d)Soil erosion
Correct answer is option 'B'. Can you explain this answer?
What is the main environmental concern associated with burning fossil fuels?
a)
Depletion of the ozone layer
b)
Acid rain formation
c)
Water pollution
d)
Soil erosion
|
|
Deepak Iyer answered |
Burning fossil fuels releases sulfur dioxide and nitrogen oxides, which react with atmospheric moisture to form acids. These acids can then fall to the ground as acid rain, causing environmental damage.
Energy-efficient appliances are important because they:- a)Generate more energy
- b)Reduce energy consumption
- c)Generate less waste
- d)Require less maintenance
Correct answer is option 'B'. Can you explain this answer?
Energy-efficient appliances are important because they:
a)
Generate more energy
b)
Reduce energy consumption
c)
Generate less waste
d)
Require less maintenance
|
|
Deepak Iyer answered |
Energy-efficient appliances reduce energy consumption by using less electricity or fuel to perform the same tasks, leading to lower energy bills and reduced environmental impact.
Which of the following is a characteristic of non-renewable energy sources?- a)They are inexhaustible
- b)They can be easily replenished
- c)They have a limited supply
- d)They produce minimal pollution
Correct answer is option 'C'. Can you explain this answer?
Which of the following is a characteristic of non-renewable energy sources?
a)
They are inexhaustible
b)
They can be easily replenished
c)
They have a limited supply
d)
They produce minimal pollution
|
|
Deepak Iyer answered |
Non-renewable energy sources, such as fossil fuels, exist in finite quantities and take millions of years to form. Once depleted, they cannot be replenished within human timescales.
Which of the following is an advantage of using renewable energy sources?- a)High energy density
- b)Limited geographical availability
- c)Non-disruptive to ecosystems
- d)Dependence on foreign imports
Correct answer is option 'C'. Can you explain this answer?
Which of the following is an advantage of using renewable energy sources?
a)
High energy density
b)
Limited geographical availability
c)
Non-disruptive to ecosystems
d)
Dependence on foreign imports
|
|
Deepak Iyer answered |
Renewable energy sources, like solar and wind power, have a smaller ecological footprint compared to non-renewable sources. They generally have minimal impact on ecosystems and biodiversity.
Which non-renewable energy source is primarily responsible for producing carbon dioxide emissions?- a)Coal
- b)Natural gas
- c)Crude oil
- d)Uranium
Correct answer is option 'A'. Can you explain this answer?
Which non-renewable energy source is primarily responsible for producing carbon dioxide emissions?
a)
Coal
b)
Natural gas
c)
Crude oil
d)
Uranium
|
|
Deepak Iyer answered |
Burning coal for electricity and heat generation is a major contributor to carbon dioxide emissions, which are a primary cause of climate change.
Which of the following is a disadvantage of using renewable energy sources?- a)High initial cost
- b)Limited availability
- c)Production of greenhouse gases
- d)Environmental degradation
Correct answer is option 'A'. Can you explain this answer?
Which of the following is a disadvantage of using renewable energy sources?
a)
High initial cost
b)
Limited availability
c)
Production of greenhouse gases
d)
Environmental degradation
|
|
Deepak Iyer answered |
The installation and setup costs associated with renewable energy sources, such as solar panels or wind turbines, can be relatively high. However, they tend to have lower operational costs in the long run.
What form of energy is produced by a hydroelectric power plant?- a)Thermal energy
- b)Mechanical energy
- c)Chemical energy
- d)Nuclear energy
Correct answer is option 'B'. Can you explain this answer?
What form of energy is produced by a hydroelectric power plant?
a)
Thermal energy
b)
Mechanical energy
c)
Chemical energy
d)
Nuclear energy
|
|
Deepak Iyer answered |
A hydroelectric power plant converts the potential energy of water at a high elevation into mechanical energy, which is used to generate electricity.
What is the main cause of the depletion of the ozone layer?- a)Burning of fossil fuels
- b)Industrial pollution
- c)Ultraviolet radiation
- d)Chlorofluorocarbons (CFCs)
Correct answer is option 'D'. Can you explain this answer?
What is the main cause of the depletion of the ozone layer?
a)
Burning of fossil fuels
b)
Industrial pollution
c)
Ultraviolet radiation
d)
Chlorofluorocarbons (CFCs)
|
|
Deepak Iyer answered |
Chlorofluorocarbons (CFCs) are synthetic compounds that were commonly used in refrigerants and aerosol propellants, contributing to the depletion of the ozone layer.
Which of the following is an example of a renewable source of energy?- a)Nuclear power
- b)Coal
- c)Hydroelectric power
- d)Petroleum
Correct answer is option 'C'. Can you explain this answer?
Which of the following is an example of a renewable source of energy?
a)
Nuclear power
b)
Coal
c)
Hydroelectric power
d)
Petroleum
|
|
Deepak Iyer answered |
Hydroelectric power is generated by the flow of water in rivers or dams. It is a renewable energy source that relies on the water cycle for its continuous supply.
The process of harnessing energy from the sun is known as:- a)Geothermal energy
- b)Nuclear fusion
- c)Solar energy
- d)Biomass energy
Correct answer is option 'C'. Can you explain this answer?
The process of harnessing energy from the sun is known as:
a)
Geothermal energy
b)
Nuclear fusion
c)
Solar energy
d)
Biomass energy
|
|
Deepak Iyer answered |
Solar energy is harnessed from the sun using photovoltaic cells or solar thermal systems. It is a renewable source of energy that is converted into electricity or used for heating purposes.
What is the primary source of energy for wind power?- a)Sun
- b)Water
- c)Wind turbines
- d)Air
Correct answer is option 'A'. Can you explain this answer?
What is the primary source of energy for wind power?
a)
Sun
b)
Water
c)
Wind turbines
d)
Air
|
|
Deepak Iyer answered |
Wind power is indirectly derived from the sun. The sun's heat causes temperature and pressure differences in the atmosphere, resulting in wind. Wind turbines convert the kinetic energy of the wind into electrical energy.
In the process of photosynthesis, solar energy is converted into:- a)Chemical energy
- b)Mechanical energy
- c)Electrical energy
- d)Thermal energy
Correct answer is option 'A'. Can you explain this answer?
In the process of photosynthesis, solar energy is converted into:
a)
Chemical energy
b)
Mechanical energy
c)
Electrical energy
d)
Thermal energy
|
|
Deepak Iyer answered |
In photosynthesis, solar energy is converted into chemical energy stored in the bonds of glucose and other organic molecules.
Chapter doubts & questions for Energy- Sources & Types - Physics for JAMB 2025 is part of JAMB exam preparation. The chapters have been prepared according to the JAMB exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for JAMB 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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