Question

Definition: This is a star that is generating light and heat by the conversion of hydrogen to helium by nuclear fusion in its core. Example: Earth's sun Term: blank hint: ma

Answer 1

The sun

Explanation:

The sun is the only star in the solar system. It is the center around which the known 8 planets and their planets revolves round giving an heliocentric system.

The solar system is but one of the systems in the milky-way galaxy.

The sun, our star provides energy for the whole solar system through a nuclear process occurring at its core.

• Nuclear fusion is the source of energy that the sun possesses.
• The process requires a very high activation energy in the presence of a high pressure and temperature to start up.
• During nuclear fusion, small atomic nuclei combines into larger ones with the release of a huge amount of energy.
• The energy released provides the needed heat to set up another fusion process. The process eventually degenerates into a series of chain reaction leading to the release of energy.
• This is what happens in the a star like the sun.

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