What was the significance of collisions of dust, rock, and ice during Earth’s formation

Explanation:

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

Answer (true);

Answerdistinguish between the mercalli scale and the richter scale;