-Removed-Gen 1:2 says: "Now the earth was formless and desolate, and there was darkness upon the surface of the watery deep, and God’s active force was moving about over the surface of the waters."
So at one point the earth was covered with water. No land yet.
Verses 6 & 7 says: Then God said: “Let there be an expanse between the waters, and let there be a division between the waters and the waters. 7 Then God went on to make the expanse and divided the waters beneath the expanse from the waters above the expanse. And it was so."
Now Jehovah divided the waters on the earth. Some went up into the atmosphere, some stayed on the earth. The water that Jehovah moved up was the water canopy that he later had to use during the flood.
The original purpose of this upper water layer or cloud layer was to act as a hot house to keep the earth in a condition that the vast majority could grow an abundance of food, unlike today where there are too many extremes that make much of the earth unsuitable for even a modest area of plants to grow.
Also humans were now exposed to the dangers of direct sunlight with it's dangers.
The point being made here is this was done by Jehovah as the bible says later he decided to use the upper cloud cover to be a major cause of the flood during Noah's day. Not a meteorite.