At 10°C, 1 cubic meter of air can hold 8 grams of water vapor. If the air had 2 grams of vapor, the relative humidity would be percent

Largely uneconomic because they provide little profit or food surplusi think so

Light rain because storms had lightning and it started crops on fire or destroyed stuff

If a particular resource is not useful or needed then the price would be considerably low. once that resource is needed the price or value will raise depending on how useful or needed it is especially if the resource is low in quantity, the consumers would pay whatever they have to, to get that material.