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Problem Analysis:

The task involves filling in the blanks in a worksheet about Energy Resources and Alternative Energy Resources. The goal is to complete the sentences with appropriate terms or concepts related to energy sources, their formation, and their uses.

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Solution:

#### Section 1: Energy Resources

1. Fossil Fuels
- Fossil fuels are energy resources formed from ancient decomposed organisms.
- Coal: Formed in swampy regions from decayed plants and sediment over millions of years.
- Pressure and heat: These conditions convert chemical reactions into solid coal.
- Peat: An early stage in coal formation.
- Lignite: A low-grade coal that forms next.
- Oil and Gas: Formed in oceanic regions from decayed algae, plankton, and sediment.
- Heat and pressure: These cause chemical reactions that transform organic matter into oil and gas.
- More porous rock layers: Allow oil and gas to migrate upward.
- Non-renewable: Because they take millions of years to form.

2. Pollution
- Pollution caused by burning fossil fuels:
- Carbon dioxide (CO₂): Released when burning coal or oil reacts with oxygen in the air.
- Particulates: Harmful particles such as soot.
- Sulfur dioxide (SO₂): Harms plants and trees.
- Nitrogen oxides (NOₓ): Harmful gases that contribute to acid rain.
- Ozone depletion: Certain pollutants can break down ozone in the atmosphere.

3. World's Energy Needs
- World’s energy needs provided by various sources:
- Coal: Provides about 25% of total energy.
- Oil: Provides about 30% of total energy.
- Natural gas: Provides about 20% of total energy.

4. Conserving Energy
- Conserving energy helps reduce the use of fossil fuels and reduces pollution.
- One way: Use energy-efficient appliances and practices.

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#### Section 2: Alternative Energy Resources

1. Renewable Energy
- Renewable energy is energy that can be recycled or replenished.
- Solar energy: Uses the Sun's energy.
- Wind energy: Converts wind power into electricity.
- Geothermal energy: Uses heat from the Earth's core.
- Hydroelectric energy: Uses water flow to generate electricity.

2. Advantages of Renewable Energy
- Enough energy reaches Earth in one hour to supply the world for a year.
- Clean energy: Does not produce harmful emissions.
- Sustainable: Can be used indefinitely without depleting resources.

3. Disadvantages of Renewable Energy
- Availability: Some renewable sources depend on specific conditions (e.g., sunlight, wind).
- Intermittency: Not always available consistently (e.g., solar at night, windless days).

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Final Answer:

Here is the completed worksheet with the answers filled in:

#### Section 1: Energy Resources
1. Fossil Fuels
- Coal: Formed in swampy regions from decayed plants and sediment.
- Pressure and heat.
- Peat.
- Lignite.
- Oil and Gas: Formed in oceanic regions from decayed algae, plankton, and sediment.
- Heat and pressure.
- More porous rock layers.
- Non-renewable.
2. Pollution
- Carbon dioxide (CO₂).
- Particulates.
- Sulfur dioxide (SO₂).
- Nitrogen oxides (NOₓ).
- Ozone depletion.
3. World's Energy Needs
- Coal: 25%.
- Oil: 30%.
- Natural gas: 20%.
4. Conserving Energy
- One way: Use energy-efficient appliances and practices.

#### Section 2: Alternative Energy Resources
1. Renewable Energy
- Solar energy.
- Wind energy.
- Geothermal energy.
- Hydroelectric energy.
2. Advantages of Renewable Energy
- Clean energy.
- Sustainable.
3. Disadvantages of Renewable Energy
- Availability only when the Sun is shining, wind is blowing, etc.

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Final Answer Box:

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