[Salman]

According to Genesis, from the time of Adam to the time of Noah, it had never rained on the earth.

Where in Genesis does it say it never rained before Noah?

This is part of the creationist geological theory of George Macreedy Price, popular with modern creationists but not the same as Genesis.

[azhenfud]

Genesis Chapter 2
5 And every plant of the field before it was in the earth, and every herb of the field before it grew: for the LORD God had not caused it to rain upon the earth, and there was not a man to till the ground.
6 But there went up a mist from the earth, and watered the whole face of the ground.

[azhenfud]

Genesis Chapter Nine
12 And God said, This is the token of the covenant which I make between me and you and every living creature that is with you, for perpetual generations:
13 I do set my bow in the cloud, and it shall be for a token of a covenant between me and the earth.
14 And it shall come to pass, when I bring a cloud over the earth, that the bow shall be seen in the cloud:
15 And I will remember my covenant, which is between me and you and every living creature of all flesh; and the waters shall no more become a flood to destroy all flesh.
16 And the bow shall be in the cloud; and I will look upon it, that I may remember the everlasting covenant between God and every living creature of all flesh that is upon the earth.
17 And God said unto Noah, This is the token of the covenant, which I have established between me and all flesh that is upon the earth.

The essence of thought is "no cloud - no rain, no cloud - no bow". A very plausible conjecture, unless sunlight had been so diffused prior to the flood that no bow could form (which that scenario would not make as much sense given the vegetation coverage on the earth). Even in a greenhouse, one can form a "bow" by spraying water into the air.

Have you ever heard of the hydrogen theory?

[azhenfud]

Genesis Chapter Nine
12 And God said, This is the token of the covenant which I make between me and you and every living creature that is with you, for perpetual generations:
13 I do set my bow in the cloud, and it shall be for a token of a covenant between me and the earth.
14 And it shall come to pass, when I bring a cloud over the earth, that the bow shall be seen in the cloud:
15 And I will remember my covenant, which is between me and you and every living creature of all flesh; and the waters shall no more become a flood to destroy all flesh.
16 And the bow shall be in the cloud; and I will look upon it, that I may remember the everlasting covenant between God and every living creature of all flesh that is upon the earth.
17 And God said unto Noah, This is the token of the covenant, which I have established between me and all flesh that is upon the earth.

The essence of thought is "no cloud - no rain, no cloud - no bow". A very plausible conjecture, unless sunlight had been so diffused prior to the flood that no bow could form (which that scenario would not make as much sense given the vegetation coverage on the earth). Even in a greenhouse, one can form a "bow" by spraying water into the air.

Have you ever heard of the hydrogen theory?