GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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black holes scattered throughout the galaxy
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nuclear fusion in massive, ancient stars
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radioactive decay within the Earth’s core
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comets and asteroids falling to Earth
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Detailed explanation-1: -For most of their lives, stars fuse elemental hydrogen into helium in their cores. Two atoms of hydrogen are combined in a series of steps to create helium-4. These reactions account for 85% of the Sun’s energy. The remaining 15% comes from reactions that produce the elements beryllium and lithium.
Detailed explanation-2: -A massive star becomes a multiple-shell red giant when the elements oxygen, neon, magnesium, silicon, and iron are formed in its core together with carbon, helium, and hydrogen. A supernova is a star that blows apart and releases a large amount of energy.
Detailed explanation-3: -the universe formed through the big bang explosion, all of the elements on Earth have been cooked for billions of years in stars and then released in the universe through super-nova explosions.