Answer:
Rocky planets are composed while the lowest elements of the rock are heated. The planet's sun or protostar producing the heavier elements descend to the underground parts and delay there by warming the planet.
Step-by-step explanation:
The stony planets develop nearer to their star. This is due to the powerful gravitational influence by the star all are revolving around. Even though they sustain more heath, and it appears that they will be the totalities that are bombastic planets, because they are near to their star, they are revolving with higher pace, that makes their outside chill off, and thus build a rocky facade, or can be exclusively hard if their essence has suspended its movement.