Below are the typical for the passage titled “Worms Put New Life into Derelict Site.” These are based on common exam versions (e.g., Cambridge IELTS 11 General Training Test 4, Section 3). Note that exact wording may vary slightly by test publisher.
| 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 | worms put new life into derelict site reading answers
TRUE — The research proved that heavy metal concentrations in the upper soil layers decreased significantly. Below are the typical for the passage titled
The use of microorganisms/worms to clean up contaminated soil. | Not Given | | Worm castings contain
Scientists introduce millions of special composting worms (often red wigglers, Eisenia fetida ) along with organic matter like manure and cardboard. The worms do three things:
While the text mentions successful trials and future potential, it does not provide information regarding immediate official approvals from local authorities. 2. Summary Completion (Fill in the Blanks)
Derelict sites can have a range of negative impacts on the environment and local ecosystems. They can contaminate soil and water, harm wildlife, and even affect the health and well-being of people living nearby. Furthermore, these sites can also hinder economic development and urban renewal efforts, as they are often too polluted to be redeveloped.
