GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Solar system is believed to occur based on a certain theory. How does the nebular hypothesis occur?
A
through a great cloud of gas and dust which begin to collapse because of gravitational pull
B
through the biblical creation of God
C
through the massive speeding of stars that passed near the sun and pulled off material due to gravitational pull
D
through the rapid expansion of the solar system which is faster than the speed of light
Explanation: 

Detailed explanation-1: -According to the nebular hypothesis, massive clouds of hydrogen and helium collapsed. After the collapse, the center of the cloud became hotter and hotter. Then, as it got hotter and more condensed, the system began to rotate. This was the beginning of the solar system’s formation.

Detailed explanation-2: -HEATING: The temperature of the solar nebula increases as it collapses. As the cloud shrinks, its gravitational potential energy is converted to the kinetic energy of individual gas particles falling inward. These particles crash into one another, converting their kinetic energy into thermal energy.

Detailed explanation-3: -The most widely accepted model of planetary formation is known as the nebular hypothesis. This model posits that, 4.6 billion years ago, the Solar System was formed by the gravitational collapse of a giant molecular cloud spanning several light-years.

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