Life on earth and the ecosystem, were created by God in the week of Creation, according to the Bible. But at the origin of Genesis, did it rain on the earth? According to the text of Genesis 2: 6, a fog rose and watered the earth. That way the land got wet. But according to the novel, in the period of the Garden of Eden, the rain falls on Adam and Eve.
Was it possible that there was rain in this period? In Genesis 9:13, we have that God made a covenant with Noah, in which he would place the bow over the clouds, to demonstrate that the flood would no longer occur. The arc mentioned is the Rainbow, an effect due to the refraction and reflection of light on the humidity of the air. If there had been rain before the Noah period, the Rainbow would have appeared, and we can see that on the back, it defines that God would put the rainbow in that period. So using both Genesis 2: 6 and Genesis 9:13. We have a solid factor, that before the flood there was no rain.
Defining that there was rain before the flood would determine for biblical analysis that the laws of physics before the flood, in relation to refraction and reflection, were different. And that the mist that watered the land, did not water, because there would be rain. And this would not be mentioned. So a good biblical analysis, would not develop the creation of a mere artistic detail, which is the characters, liking the rain, which could generate the ideology of error, about the doctrine of covenant between God and Noah, when determining the Rainbow, as the beginning of a pact to no longer cause the flood on the earth.