How do we know, today, how organic molecules like amino acids came into existence during the beginning of Earth's existence? From these organic molecules, how did life come about, especially in an environment where there was no oxygen?

Well let's uhmmm how many bedrooms you want. if you want a garage. not to mention the price of the house?

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.

Oi oi oi oi oi oi  i think it is true