'Super nova' is – (1) a comet (2) an asteroid (3) an exploding Star (4) a black hole

'Super nova' is – (1) a comet (2) an asteroid (3) an exploding Star (4) a black hole
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(3) an exploding Star Explanation: A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
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