write information on before pandemic and after pandemic situation of Corona virus
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Explanation:
If all the lions from the given food chain are removed, the population of deer will increase exponentially. Thus, deers and other plant-eaters will be present in abundance which will lead to overgrazing of grass and no grass will left. And if no grass will be left, then deer will automatically die which will eventually destroy the complete food chain
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4
Explanation:
The World Health Organization declared the outbreak a Public Health Emergency of International Concern on 30 January 2020, and a pandemic on 11 March 2020.
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