Which observation most likely indicates the presence of a black hole? a. nearby objects are undergoing a gravitational effect. b. there is a pitch-black region in space with nothing else around it. c. x-rays are emitted from a source and then quickly pulled back in again. d. a particular area is producing lots of radiation in all parts of the electromagnetic spectrum.
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Which observation most likely indicates the presence of a black hole? a. nearby objects are undergo...
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