In a high-pressure area, they are often very calm and sunny maybe (but not always) a little hot. Low-pressure systems are the exact opposite with thunderstorms, winds, lightning, hail, or most dangerous of all Tornadoes. But most often with just rain.
The collision of the dust, ice and rock created energy that raised Earth's temperature, making it hot enough to melt, sinking the densest materials to Earth's core and leaving the less dense material to harden as crust and mantle on Earth's surface
