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Hydrogen fusion in a shell outside the core generates enough thermal pressure to push the upper layers outward.

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Q: Why does a star grow larger after it exhausts its core hydrogen?
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Does the sun grow every day?

Yes, the Sun does grow very slightly larger by a few centimeters every day, and even gets hotter, as it fuses its hydrogen into helium in its core. In a few billion years, it will swell into a red giant and destroy all of the small planets close to the Sun, including Earth.


Why are heavy atoms are not appreciably larger than the hydrogen atom?

My theory to why heavy atoms are not appreciably larger than the hydrogen atom is supposedly because that gases can expand and so that hydrogen is a gas, it is larger though if hydrogen were compressed, it should grow appreciably smaller than heavy atoms. Also to make that test fair you would have to make the heavy atom at its gas state so that then you could see the true, fair differ in size between a hydrogen and heavy atom.


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The Earth's inner core is increasing in size as the planet cools.


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they grow larger and stronger


Do organism grow larger?

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What word means to grow faster or to larger than?

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Do humans grow by each cell getting larger in size?

People do not grow by each cell becoming larger. People grow because their cells divide and their organs and tissues, made up of more and more cells, become larger.


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