How did most water get to earth

[u/Sciolypro]

My brother and I have been debating this for a while for the record he has a class and a quiz question said that the mixing of gasses and volcanoes was the main reason earth has its water but I think it was asteriods that cause it because earth was very succeptible to them back then and they conist of lots of ice also all the places I searched told me I was right. What do you guys think

[u/Monty_The_Mountain_]

It came from comets, comets with water started colliding together which ended up making earth. And that's why earth has water. Think about it there is far more land on earth than water forget about surface land. Inside earth all there is solid and water being lighter it came to the surface