Let's solve each question based on the passage provided in the worksheet. I'll go step by step, explain the reasoning, and give the correct answers.
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Passage Summary (Key Points):
- Industries and power plants burn
fossil fuels to generate energy.
- Burning fossil fuels releases
sulfur dioxide and
nitrogen oxide into the air.
- Power plants emit
at least two-thirds of all sulfur dioxide and
more than one-third of nitrogen oxides that pollute the air.
- Some industries produce
VOCs (volatile organic compounds), which form toxic fumes.
- Sources of VOCs include: dry cleaning chemicals, oil refineries, chemical manufacturing plants, furniture refinishers, automobile repair shops.
- When people use products containing VOCs,
more VOCs are added to the air.
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Question 1: What do most industries and power plants use for energy?
Options:
a. VOCs
b. nitrogen oxide
c. sulfur dioxide
d. fossil fuels
Answer: d. fossil fuels
Explanation:
The first sentence of the passage states: *"Many industries and power plants that generate our electricity must burn fuel to get the energy they need. They usually burn fossil fuels."*
So, fossil fuels are the primary energy source.
✔ Correct answer: d
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Question 2: What type of industry produces two-thirds of all sulfur dioxide that pollutes the air?
Options:
a. air conditioning manufacturers
b. dry cleaners
c. long-distance trucking companies
d. electrical power plants
Answer: d. electrical power plants
Explanation:
The passage says: *"Power plants that produce electricity emit at least two-thirds of all sulfur dioxide..."*
This directly identifies
electrical power plants as the major source.
✔ Correct answer: d
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Question 3: Which of the following does not produce volatile organic compounds (VOCs)?
Options:
a. organic farm
b. oil refinery
c. furniture refinisher
d. automobile repair shop
Answer: a. organic farm
Explanation:
The passage lists sources of VOCs:
- Dry cleaning
- Oil refineries
- Chemical manufacturing plants
- Furniture refinishers
- Automobile repair shops
An
organic farm is not mentioned and typically does not involve industrial processes that release VOCs. It’s likely a "clean" agricultural operation without synthetic chemicals that emit VOCs.
✔ Correct answer: a
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Question 4: What happens when people use a product that contains VOCs?
Options:
a. They get very sick.
b. Nothing happens.
c. More VOCs are added to the air.
d. The VOCs return to the atmosphere as carbon dioxide.
Answer: c. More VOCs are added to the air.
Explanation:
The passage says: *"When people use some of the products that contain VOCs, more VOCs are added to the air."*
This is a direct quote from the text.
✔ Correct answer: c
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✔ Final Answers:
1.
d. fossil fuels
2.
d. electrical power plants
3.
a. organic farm
4.
c. More VOCs are added to the air.
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Parent Tip: Review the logic above to help your child master the concept of skills worksheet directed reading answers.
