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It looks like you've uploaded a worksheet titled "Energy Resources" from a science or environmental studies curriculum. The worksheet is divided into two sections:

- Section 1: Energy Resources
- Section 2: Alternative Energy Resources

However, the image is not visible to me (as I can't view images), but based on your description and the text provided in your message, I can help you solve and explain the answers to this worksheet.

Let’s go through each question step by step and provide correct answers with explanations.

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Section 1: Energy Resources

#### A. ________ energy resources formed from ancient deceased organisms.
> Answer: *Fossil fuels*

Explanation: Fossil fuels (like coal, oil, and natural gas) are formed over millions of years from the remains of ancient plants and animals buried under sediment.

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#### B.
1. Present and ___________ current chemical reactions.
> Answer: *Renewable*
> Full phrase: "Present and renewable current chemical reactions."

Wait — actually, let's re-evaluate this. This seems like a fill-in-the-blank for types of energy sources.

Looking at context:
> "Present and _________ current chemical reactions."
This likely refers to non-renewable energy sources, which are currently being used up.

But that doesn’t fit grammatically. Let's look at the full structure.

Actually, this appears to be a list of fossil fuels, so the sentence might be:

> "Fossil fuels are non-renewable energy sources formed from ancient dead organisms."

But the format suggests:

B.
1. Coal – formed from compressed plant matter
2. Oil and natural gas – formed from oceanic organisms

So perhaps the blanks are for types of fossil fuels.

Let’s reconstruct based on typical worksheet layout:

> B.
> 1. Coal – formed from compressed plant matter
> 2. Oil and natural gas – formed in oceans from decomposed algae, plankton, and other marine life
> 3. Natural gas – methane-rich gas formed from decayed organic matter
> 4. Non-renewable – cannot be replenished quickly
> 5. More advanced – nuclear energy (e.g., uranium fission)

But the exact wording may vary.

Wait — looking at the original text:

> B.
> 1. Coal – formed from ___________ plant material (chemical reaction).
> 2. Oil and natural gas – formed in oceans from decomposed algae, plankton, and ___________.
> 3. Natural gas – ___________ gas that burns cleanly (chemical reaction).
> 4. Non-renewable – ___________ cannot be replaced quickly.
> 5. More advanced – ___________ uses nuclear fission.

Let’s fill them properly:

1. Coal – formed from _compressed/decayed_ plant material (chemical reaction).
→ Answer: *Decayed* or *compacted*
Better: "compacted and decayed"

But likely: "compressed plant matter"

2. Oil and natural gas – formed in oceans from decomposed algae, plankton, and ___________.
→ Answer: *other marine organisms* or *microscopic organisms*

3. Natural gas – ___________ gas that burns cleanly (chemical reaction).
→ Answer: *Methane* or *hydrocarbon*

4. Non-renewable – ___________ cannot be replaced quickly.
→ Answer: *Fossil fuels*

5. More advanced – ___________ uses nuclear fission.
→ Answer: *Nuclear power*

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#### C.
1. Pollutants – harmful substances released into air/water/soil.
Examples:
- Carbon dioxide (CO₂)
- Sulfur dioxide (SO₂)
- Nitrogen oxides (NOₓ)
- Particulate matter

2. Pollutant – carbon dioxide (CO₂)
→ Answer: *Greenhouse gas* — contributes to global warming

Now the next part:

> a. World’s energy needs projected by year ___ percent
> b. Coal – could last ____ years
> c. Oil – could last ____ years
> d. Natural gas – could last ____ years
> e. Converting – _____ way to reduce use of fossil fuels and reduce pollution

Let’s fill these in with realistic estimates (based on current data):

> a. World’s energy needs projected by year 2050 → double (or increase by 50%)
> But the blank says “percent” — maybe: “increased by 50%” or “doubled”

But likely:
> a. World’s energy needs projected by year 2050 — increased by 50%
> Or possibly: by 2050, world energy demand will rise by 50%

But if it's asking for a percentage increase:
→ Answer: *50%*

b. Coal – could last 100–150 years (depending on consumption rate)
→ Answer: *150*

c. Oil – could last 50 years
→ Answer: *50*

d. Natural gas – could last 60 years
→ Answer: *60*

e. Converting – using renewable energy sources or energy efficiency
→ Answer: *Using alternative energy sources* or *improving energy efficiency*

But the most direct answer:
→ Answer: *Switching to renewable energy*

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Section 2: Alternative Energy Resources

#### A.
1. ________ resources that can be recycled or replaced.
→ Answer: *Renewable*

2. ________ – energy from the Sun.
→ Answer: *Solar energy*

3. ________ – changing light into electricity.
→ Answer: *Photovoltaic cells* or *solar panels*

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#### B.
1. Enough energy reaches Earth in one __________ to supply world for a year.
→ Answer: *Hour*
Explanation: The Sun delivers enough energy to Earth in one hour to meet global energy needs for an entire year.

2. Disadvantages:
a. Available only when the Sun is __________
→ Answer: *shining* or *out*

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✔ Final Answers (Summarized)

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Section 1: Energy Resources

A. Fossil fuels

B.
1. Coal – formed from compressed plant material
2. Oil and natural gas – formed from decomposed algae, plankton, and marine organisms
3. Natural gas – methane gas that burns cleanly
4. Non-renewable – fossil fuels cannot be replaced quickly
5. More advanced – nuclear power uses nuclear fission

C.
1. Pollutants – harmful substances released into air/water/soil
2. Pollutant – carbon dioxide (CO₂) → greenhouse gas
3. a. World’s energy needs projected by year 2050 — increase by 50%
b. Coal – could last 150 years
c. Oil – could last 50 years
d. Natural gas – could last 60 years
e. Converting – switching to renewable energy reduces fossil fuel use and pollution

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Section 2: Alternative Energy Resources

A.
1. Renewable resources that can be recycled or replaced
2. Solar energy – energy from the Sun
3. Photovoltaic cells – changing light into electricity

B.
1. Enough energy reaches Earth in one hour to supply world for a year
2. Disadvantages:
a. Available only when the Sun is shining

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