Worms Put New Life Into Derelict Site Reading Answers

Finally, remember: The passage is ultimately optimistic. It argues that even the most abused, derelict land can be reborn—with the humble worm as a silent, tireless engineer. That is a powerful idea worth reading about, and now, you have the answers to prove your understanding.

B Explanation: Traditional methods (soil excavation, landfilling, or thermal treatment) are extremely expensive. The passage highlights that worm-based remediation costs a fraction of that amount, making it viable for large derelict sites.

On a derelict site, soil compaction is a major barrier to recovery. The ground is so hard that plant roots cannot penetrate it, and water pools on the surface, causing runoff rather than irrigation. Earthworms, particularly deep-burrowing species like Lumbricus terrestris (the common earthworm), act as biological plows. worms put new life into derelict site reading answers

FALSE Explanation: The passage usually mentions a timeframe of 18–24 months for significant improvement, and "public park" status may be a future goal, not a completed result at the time of writing.

take place at other steelworks.

These deeper-burrowing species chew through a "topping layer" made of colliery waste and partially treated sewage.

As they tunnel, they create macropores—channels that allow air and water to penetrate deep into the ground. This process, known as bioporation, restructures the soil profile. It turns a sealed, anaerobic (oxygen-free) environment into an aerobic one, allowing the essential return of oxygen which fuels the aerobic bacteria needed to break down pollutants. Finally, remember: The passage is ultimately optimistic

The worms will take 5 to 10 years to create usable soil; without them, the natural process could take up to 60 years. Answer Guide for Common Questions Question Type Focus Area Correct Answer / Key Fact Multiple Choice Impact of steel production The land was impossible to build on due to contamination. Multiple Choice Who proposed the plan? Scottish Greenbelt and HL Banks . Multiple Choice Number of worm types Two types of worms are being used. Multiple Choice Regeneration duration Regeneration with worms will take between 5 and 10 years . Sentence Completion Bell College research Worms quickened the process of soil recomposition. Sentence Completion Soil enrichment Air and nitrogen are added to the soil by the worms. Sentence Completion Removing contaminants