Why do stars give heat and light?

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Due to fuels burning inside the core of the star.

Gases reacts at very high temperatures.

Due to the emission of photons and radiation during the reaction.

All of the above.

answer is D.

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Detailed Solution

Stars give heat and light due to fuels (like hydrogen and helium) burning inside the star's core. These gases react at very high temperatures, which emits photons and radiation during the reaction.
Stars consist of hydrogen gas inside the core with high temperature due to high pressure. During this process, radiation is produced in the form of light and heat. Every star burns like fuel to produce light and heat.

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