what causes resources to deplete? also is there any way to predict how long a resource will last?
Often when playing a game I'd have like two sources of say oil and I'd trade one source while using the other, but then one source gets depleted and its me who loses the oil first (not the one whom I traded with).
Also, is there any way to cancel a trade peacefully with another civ?
And how do you cancel a trade after 20 turns? Often times I'd find that the deals last longer than 20 turns and I don't see how I can stop it...
Often when playing a game I'd have like two sources of say oil and I'd trade one source while using the other, but then one source gets depleted and its me who loses the oil first (not the one whom I traded with).
Also, is there any way to cancel a trade peacefully with another civ?
And how do you cancel a trade after 20 turns? Often times I'd find that the deals last longer than 20 turns and I don't see how I can stop it...