Nanna Quiz – 13 Feb 2021

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Answers

1. No. A symbiotic relationship exists between insects called psyllids which infect eucalypts and the bell miner, or bellbird. The birds feed on a sugary substance produced by the psyllids, without killing them, while their aggressive territorial behaviour (including the bell sound) drives away other small native birds that would have eaten the insect. The psyllid population explosion attracts more bellbirds and so the cycle is perpetuated. The insects drain the trees of nutrients, thin the foliage and ultimately, kill the forest.

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ABC News

2. Dendrobium’s massive coal mine expansion under the water catchment has been refused by the IPC based on the potential for long-term and irreversible impacts on the integrity of a vital drinking water source for the Macarthur and Illawarra regions, the Wollondilly Shire and metropolitan Sydney — it is not in the public interest.

3. Fake News. Bonus point for runner up: Mansplaining.

4. Coachwood, Sweet Bursaria

5. CFCs (chlorofluorocarbons) caused a hole in the ozone layer, allowing excessive UV radiation to impact the earth, causing ecological damage. It was banned internationally on 1/1/1996. Since then, the ozone layer is healing

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