Question

what are the necessary precautions to be taken for corona​

Answer 1

Answer:

A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

Explanation:

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Answer 2

Answer:

Keep social distance wash your hands regularly wear mask when you go out and get vaccinated