Final answer:
The solar wind, consisting of charged particles from the Sun's corona, clears leftover gases and debris in the young solar system. Its high speed and energy effectively sweep away these gases, leaving behind the rocky and metallic materials found in the inner planets and most asteroids.
Step-by-step explanation:
The solar wind is a stream of charged particles (protons and electrons) that flow outward from the Sun into the solar system.
This solar wind is created by the hot and rapidly moving gases in the Sun's corona. As the gases in the corona cannot be held back by solar gravity, they are blown away into the solar system at a speed of about 400 kilometers per second.
In the early stages of the solar system, when it was still young, there were leftover gases and debris from the formation process.
The solar wind played a crucial role in clearing these leftover gases. The high speed and energy of the solar wind particles were able to sweep away and remove the remaining gases, leaving behind the rocky and metallic materials that make up the inner planets and most asteroids.