Worms Put New Life Into Derelict Site Reading Answers

Nature’s Reclamation: How Worms are Reviving Hallside Steelworks For over a century, the Hallside steelworks

Over several months, the site underwent a remarkable transformation: worms put new life into derelict site reading answers

| Question | Answer | |----------|--------| | Worms were first used for site cleanup in the 1990s. | Not Given | | Worm castings contain higher nitrogen than surrounding soil. | True | | What heavy metal do worms absorb most efficiently? | Cadmium | | Main limitation of using worms? | Slow process / Cannot remove all toxins | contaminants (heavy metals

Limitations and Risks

• Site heterogeneity, contaminants (heavy metals, hydrocarbons) that may limit earthworm survival or bioaccumulate.
• Potential for unintended ecological shifts if non-native earthworms are introduced.
• Climate constraints: extremes of drought or freezing may limit earthworm efficacy.