Question

Please answer this if you know it. I looked through my materials and could not find it anywhere. Could you please explain what they answer is and why? I want to learn from this rather than just get an answer.

Answer 1

The earth rotates because of the way it was formed. Our Solar System formed about 4.6 billion years ago when a huge cloud of gas and dust started to collapse under its own gravity. As the cloud collapsed, it started to spin.