who wrote ancient education system of india lesson? from class 8
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Explanation:
There is a continuous reaction that occurs on the surface of the sun. The reaction is nuclear fusion reaction.
Nuclear fusion reaction is a nuclear reaction which occurs when two light weight atoms fuse to form a heavy atom. During this, a lot of light and energy is emitted.
On the surface and the core of sun, the atoms of hydrogen join to form helium.
Due to this continuous reaction, the surface of the sun is growing larger or is expanding 8s other words.
The sun's radius is gradually changing because of it and the research says that by next 6 billion years the sun will expand so much to about 100 times perhaps to the orbit of Venus.
This may bring a threat to life on earth too. It is also said that the oceans will dry and the glaciers will melt soon because the sun is expanding. And even after billion and million years it may engulf the Earth.
So, the scientists mostly talk about the expansion of the sun and the threat of life caused by it.
The other thing is will it be useful for powering up nuclear machines and travelling outer space.
Probably we may say as it expands, the distance between our planet and the sun will decrease and the solar energy we may get will be more.
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