Question

1. when did our solar system begin to form? 1) what caused the formation of our solar system?

Explanation:

The solar - system's formation is a topic in astronomy, a sub - field of natural science. Current scientific consensus is that the solar system began to form about 4.6 billion years ago from a giant molecular cloud through the process of gravitational collapse.

Answer:

The solar system began to form about 4.6 billion years ago.