UNIVERSE
SURVEY OF THE PLANETS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Formation of the atmosphere of the planets.
|
|
|
Formation of the planets’ core
|
|
|
Formation of the planetesimals
|
|
|
Formation of the Sun
|
Detailed explanation-1: -The standard scenario of terrestrial planet formation consists of three stages: (1) dust to planetesimals, (2) planetesimals to protoplanets, and (3) protoplanets to planets.
Detailed explanation-2: -The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it.
Detailed explanation-3: -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.
Detailed explanation-4: -Planet formation is the process of forming a planet. It includes the gravitational collapse of a planetesimal into a protoplanet, the accretion of materials onto this protoplanet, and the planetary accretion that follows.