Renewable and Non-renewable Energy Sources Worksheet - EduMonitor - Free Printable

Task: Solve the problems related to renewable and non-renewable energy sources.

#### 1. Which of the following is an example of a renewable energy source?
- Options:
- (a) Coal
- (b) Oil
- (c) Solar energy
- (d) Natural gas

Explanation:
Renewable energy sources are those that can be replenished naturally in a short period of time. Examples include solar, wind, hydro, geothermal, and biomass. Non-renewable energy sources, on the other hand, are finite resources that take millions of years to form, such as coal, oil, and natural gas.

- Coal, Oil, and Natural Gas are non-renewable because they are fossil fuels formed from ancient organic matter over millions of years.
- Solar energy is renewable because it comes from the sun, which is a virtually limitless source of energy.

Answer: (c) Solar energy

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#### 2. Which of the following is an example of a non-renewable energy source that releases greenhouse gases?
- Options:
- (a) Biomass
- (b) Solar energy
- (c) Hydropower
- (d) Coal

Explanation:
Non-renewable energy sources like coal release greenhouse gases when burned, contributing to climate change. Renewable sources like solar energy, hydropower, and biomass generally have lower or no greenhouse gas emissions.

- Biomass is renewable and does not typically release significant amounts of greenhouse gases.
- Solar energy and hydropower are also renewable and do not emit greenhouse gases during operation.
- Coal is a non-renewable fossil fuel that releases large amounts of carbon dioxide and other greenhouse gases when burned.

Answer: (d) Coal

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#### 3. Why is it important to consider using renewable energy sources?
- Options:
- (a) To save money
- (b) To reduce pollution
- (c) To become popular
- (d) All of the above

Explanation:
Using renewable energy sources has multiple benefits:
1. Saving money: Renewable energy technologies, once installed, often have lower operational costs compared to fossil fuels.
2. Reducing pollution: Renewable energy sources produce little to no greenhouse gases or air pollutants, helping to mitigate climate change and improve air quality.
3. Popularity: As awareness about environmental issues grows, there is increasing demand for clean energy solutions, making renewable energy more popular.

All three reasons are valid, so the correct answer includes all of them.

Answer: (d) All of the above

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#### 4. Hydropower is considered a renewable energy source because it:
- Options:
- (a) Uses the wind to generate electricity
- (b) Relies on the combustion of organic materials
- (c) Utilizes the natural flow of water to produce energy
- (d) Can only be used during the daytime

Explanation:
Hydropower is a renewable energy source because it harnesses the natural flow of water (e.g., rivers, dams) to generate electricity. It does not rely on burning organic materials or depend on wind or sunlight.

- Option (a) is incorrect because hydropower does not use wind.
- Option (b) is incorrect because hydropower does not involve combustion.
- Option (c) is correct because hydropower uses the natural flow of water.
- Option (d) is incorrect because hydropower can operate continuously, not just during the daytime.

Answer: (c) Utilizes the natural flow of water to produce energy

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#### 5. What is the main drawback of nuclear power?
- Options:
- (a) It requires large amounts of water for cooling.
- (b) It produces greenhouse gases.
- (c) It generates radioactive waste.
- (d) It is highly dependent on sunlight.

Explanation:
Nuclear power has several drawbacks, but the most significant one is the generation of radioactive waste. This waste is hazardous and requires careful long-term storage due to its high radioactivity and long half-life.

- Option (a) is partially true but not the main drawback.
- Option (b) is incorrect because nuclear power does not produce greenhouse gases during operation.
- Option (c) is correct because radioactive waste is a major environmental and safety concern.
- Option (d) is incorrect because nuclear power does not depend on sunlight.

Answer: (c) It generates radioactive waste

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#### 6. Solar panels generate electricity by converting what type of energy?
- Options:
- (a) Mechanical
- (b) Thermal
- (c) Chemical
- (d) Solar radiation

Explanation:
Solar panels convert sunlight (solar radiation) into electrical energy through the photovoltaic effect. They do not directly convert mechanical, thermal, or chemical energy.

- Option (a) is incorrect because solar panels do not use mechanical energy.
- Option (b) is incorrect because solar panels do not primarily convert thermal energy.
- Option (c) is incorrect because solar panels do not involve chemical reactions.
- Option (d) is correct because solar panels directly convert solar radiation into electricity.

Answer: (d) Solar radiation

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Final Answers:

1. (c) Solar energy
2. (d) Coal
3. (d) All of the above
4. (c) Utilizes the natural flow of water to produce energy
5. (c) It generates radioactive waste
6. (d) Solar radiation

Boxed Final Answers:
1. (c)
2. (d)
3. (d)
4. (c)
5. (c)
6. (d)