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"Window of opportunity closing" to save world's coral
Reefs declined by 14% worldwide over the last decade but scientists say they could come back
Reefs declined by 14% worldwide over the last decade but scientists say they could come back.
Facebook boss Mark Zuckerberg has apologised for a technical failure that left users worldwide unable to access his his company's social media platforms.
And a team of French and British physicists has devised an 鈥榠nvisibility cloak鈥� - so why are they doing it and what can it be used for?
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Tue 5 Oct 2021
06:06GMT
成人快手 World Service
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