ASMO Asian English Olympiad 2022 — Level 3 — Grade 5–6 — School Category Câu hỏi 30

Câu hỏi 30

Earthworms are known to offer many benefits to soil’s health. There are many forests that are yet to be invaded by earthworms until being reintroduced by humans. However, its invasive nature is making the number of insects to slump rapidly in North America.

1. The insects in North America indulge on earthworms.
2. The existence of earthworms may bring diverse effect to the land.
3. People introduce earthworms to the forest for it to occupy the area.
4. People have the knowledge on how to reduce the number of invasive earthworms.