Technology Paper Recycling

What percentage of paper used in Britain ends up at a recycling facility?

• A. 10%
• B. 25%
• C. 40%
• D. 70%

Why is sorting paper waste a challenge for recyclers?

• A. Because there are too few workers.
• B. Due to the variety of paper types and contamination.
• C. Machines cannot detect paper.
• D. Recyclers do not have enough storage.

How are light papers separated from cardboard and packaging in the recycling process?

• A. Using magnets
• B. Manually by workers
• C. Through a series of rollers
• D. Using lasers

What device is used to remove unwanted coloured card during sorting?

• A. Laser cutter
• B. Magnet
• C. Air blaster with a colour sensor
• D. Water jet

Even with high-tech machines, what is still the most effective method for final paper sorting?

• A. Water separation
• B. Robotic arms
• C. People power
• D. Conveyor belts

What is the purpose of adding soap and air to the paper pulp during cleaning?

• A. To bleach the paper
• B. To remove ink
• C. To make the pulp sticky
• D. To cool the pulp

How long does it take for the machine to turn pulp into paper?

• A. 2 minutes
• B. 1 hour
• C. 10 seconds
• D. 20 seconds

What is the water content of the pulp when it enters the paper-making machine?

• A. 50%
• B. 75%
• C. 99%
• D. 10%

What do heated rollers do to the paper?

• A. Ink it
• B. Clean it
• C. Dry it
• D. Cut it

Why is white ink added to the processed paper?

• A. To make it waterproof
• B. To give it a clean appearance
• C. To add chemicals
• D. To make it stronger