1)
Where were there no mountains?
1.
Rashi: In the water. Malbim - Yesod he'Afar was covered by Yesod ha'Mayim. The dry land was not yet seen 1 ; it was not proper to be settled. Hashem said that there should be a Raki'a, and put in the nature of vapors to rise above the Raki'a. They had been mixed with Yesod ha'Avir, and now separated from it, according to the laws of the nature of rainfall.
1
Until Hashem gathered the water to one place (Bereishis 1:9). (PF)
