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Free Practice Quiz Question List

06 Materials, Waste, and the Circular Economy Online Quiz Questions

Use this free practice quiz with 20 questions to review 06 Materials, Waste, and the Circular Economy, test your knowledge, and prepare for your next test or exam.

20 questions
01
Choose one
1 point

A factory wants to reduce pollution from cleaning its equipment. Which action best prevents pollution at its source?

  1. A

    Filter the wastewater after production

  2. B

    Change the process to use a less toxic cleaning agent and prevent spills

  3. C

    Dispose of the wastewater without treatment

  4. D

    Increase production and clean up any spills afterward

02
Written response
1 point

What is the practice of avoiding waste at its origin called?

03
Fill in the blank
1 point

In the waste-management hierarchy, source reduction and reuse are generally followed by .

04
Choose all
1 point

Select all strategies that can keep products useful for longer in a circular economy.

  1. A

    Maintaining products so they remain useful

  2. B

    Sending usable products directly to disposal

  3. C

    Sharing products among multiple users

  4. D

    Refurbishing products for further use

05
Choose one
1 point

A bicycle has a worn part that can be replaced. Why is repairing it generally preferred to recycling it right away?

  1. A

    Recycling always avoids all resource use

  2. B

    Recycling preserves the bicycle as a complete product

  3. C

    Repair keeps the bicycle’s existing parts and manufacturing effort in use

  4. D

    Repair is equivalent to disposing of the bicycle

06
Open ended
1 point

A factory can either change its process to produce less contaminated wastewater or rely on filtering wastewater after production. Explain how these options differ in timing and why source prevention can still matter when treatment is available.

07
Fill in the blank
1 point

When food scraps and yard trimmings decompose through composting, they become a .

08
Written response
1 point

What approach considers a material’s impacts from extraction through manufacturing, use, reuse, and end-of-life?

09
Choose all
1 point

Select all conditions that support effective recycling.

  1. A

    Materials are sorted correctly

  2. B

    Materials are contaminated with unsuitable items

  3. C

    There is demand for products made with recycled content

  4. D

    The local program’s accepted materials are ignored

10
Choose one
1 point

A manufacturer wants an appliance to remain useful longer and retain material value when it is returned. Which design and service approach best supports this goal?

  1. A

    Make the appliance difficult to open and repair

  2. B

    Design it with replaceable components and repair it when parts fail

  3. C

    Discard it as soon as one component fails

  4. D

    Use components that cannot be separated or recovered

11
Choose one
1 point

A business extracts raw materials, makes products, sells them for use, and then sends them to disposal without planning for reuse or recovery. Which economic pattern does this describe?

  1. A

    A linear economy

  2. B

    A circular economy

  3. C

    Sustainable materials management

  4. D

    Composting

12
Choose one
1 point

After waste prevention, reuse, recycling, composting, and energy recovery are not feasible for a residual waste stream, what is the purpose of treatment and disposal?

  1. A

    Preventing waste before it is created

  2. B

    Reusing a product without converting it to raw material

  3. C

    Reducing waste volume or hazards, then safely disposing of what remains

  4. D

    Recovering organic matter through composting

13
Choose one
1 point

A community wants to manage food scraps in a way that can return nutrients to soil. Which strategy best fits that goal?

  1. A

    Send food scraps for energy recovery

  2. B

    Compost the food scraps

  3. C

    Recycle the food scraps into packaging

  4. D

    Treat the food scraps as hazardous waste

14
True or false
1 point

A circular economy is designed to keep products and materials circulating forever without any losses.

  1. A

    True

  2. B

    False

15
Written response
1 point

A manufacturer redesigns a package so it uses less material and prevents packaging waste before it is created. What is this strategy called?

16
Choose one
1 point

A household has a recyclable container contaminated with food, and local recycling rules specify accepted materials. What should the household do to avoid interfering with recycling?

  1. A

    Put every discarded item into recycling so it can be sorted later

  2. B

    Recycle it only if it has a recycling symbol, regardless of local rules

  3. C

    Check local acceptance rules and keep unsuitable or contaminated items out

  4. D

    Send all recyclable materials to energy recovery

17
Written response
1 point

What approach considers a material's impacts across extraction, manufacturing, use, reuse, and end-of-life?

18
Choose one
1 point

A factory can either change its process to use a less toxic cleaning agent and reduce spills, or rely on wastewater filtering after production. Which option best applies pollution prevention?

  1. A

    Change the process to use a less toxic agent and prevent spills

  2. B

    Rely only on filtering wastewater after production

  3. C

    Increase disposal of untreated wastewater

  4. D

    Wait until pollution occurs and then clean up the affected area

19
True or false
1 point

The waste-management hierarchy is a guide, but it does not claim that one strategy is best for every material in every situation.

  1. A

    True

  2. B

    False

20
True or false
1 point

True or false: Once a discarded material is recyclable, collecting and remanufacturing it require no additional energy.

  1. A

    True

  2. B

    False