GK
THE UNIVERSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
A nebulae
|
|
|
A Nuclear fission.
|
|
|
A moon
|
|
|
A star
|
|
|
A planet.
|
Detailed explanation-1: -Overview: A star is a huge luminous ball of hot gas, mostly hydrogen and helium, held together by gravity. Nuclear reactions in the cores of all stars, including our Sun, produce energy in the form of light. Stars shine because this light works its way to the surface and radiates out into space.
Detailed explanation-2: -A star is a sphere of gas held together by its own gravity. The closest star to Earth is our very own Sun, so we have an example nearby that astronomers can study in detail.
Detailed explanation-3: -A galaxy is a giant, spinning object made of gas, dust, and stars held together by gravity. Galaxies come in different shapes and sizes and can contain billions of stars.
Detailed explanation-4: -Stars are large spheres of plasma, held together by their own gravity. Stars emit light, heat and other types of radiation due to the nuclear fusion processes that take place inside them, releasing large amounts of energy.