GK
SOLAR SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which term describes a small body from which a planet forms?
|
|
orbit
|
|
|
planetesimal
|
|
|
Solar nebula
|
|
|
protoplanetary disk
|
Explanation:
Detailed explanation-1: -Dust clumps become pebbles, pebbles become larger rocks that grind together to expand. The presence of gas helps particles of solid material stick together. Some break apart, but others hold on. These are the building blocks of planets, sometimes called “planetesimals."
Detailed explanation-2: -The word has its roots in the concept infinitesimal, which indicates an object too small to see or measure. Planetesimals can be anywhere in size from several meters to hundreds of kilometers. The term refers to small celestial bodies formed during the creation of planets.
There is 1 question to complete.