GENERAL KNOWLEDGE

Detailed explanation-1: -In the core of the Sun hydrogen is being converted into helium. This is called nuclear fusion . It takes four hydrogen atoms to fuse into each helium atom.

Detailed explanation-2: -It takes such a great deal of energy to produce nuclear fusion that in our modern and mature universe, nuclear fusion will only occur naturally inside stars like our sun, where the heat and pressure are sufficient to press light atomic nuclei together to form heavier elements.

Detailed explanation-3: -The energy from the Sun-both heat and light energy-originates from a nuclear fusion process that is occurring inside the core of the Sun.

Detailed explanation-4: -The Core: The core of the Sun is where the temperature is high enough for active nuclear fusion. That is where hydrogen, the nuclear fuel, is being converted to helium. The core is the only place in the Sun where significant energy is being generated.

Detailed explanation-5: -The sun’s energy comes from fusion in its core, shown in the Figure below. In the core, temperatures reach millions of degrees Kelvin. Q: Why doesn’t nuclear fusion occur naturally on Earth? A: Nuclear fusion doesn’t occur naturally on Earth because it requires temperatures far higher than Earth temperatures.