GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The solar system formed 4.6 billion years ago when a disk of dust and gas was pulled together by
A
Asteroids
B
Meteoroids
C
Gravity
D
Thermal Energy
Explanation: 

Detailed explanation-1: -Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula – a spinning, swirling disk of material.

Detailed explanation-2: -The nebular hypothesis is the idea that a spinning cloud of dust made of mostly light elements, called a nebula, flattened into a protoplanetary disk, and became a solar system consisting of a star with orbiting planets [12].

Detailed explanation-3: -It takes the sun 220 million years to circle once around the center of our galaxy. During the 4.6 billion years that the Sun has been in existence, it has gone around the center just over 20 times.

There is 1 question to complete.