You are the headboy/headgirl of your school.you have planned to start a cleaning campaign near your school.Draft a notice for your school informing all about the campaign,date and time of the same.
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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.
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