Some Abyss questions

Hi, i have some questions about the abyss mechanic.

1: If i open an abyssal depth in the map, and there is more abyss to do in the map, this abyss can open another abyssal depth?

2: What is the chance to open the abyssal depth with no passive nodes from the tree?

3: There is a node on the passive tree called awakened depths, that gives 100% chance to open an abyssal depth in the map, if it do not leads to a abyssal chest of abyssal spire, how does this node really works?

4: What is the base chance to open an abyssal depths?

5: What is the chance to get an unique item with 2 abyssal sockets? Is there a lowest level of the area you need to do for the item come with 2 abyssal sockets? For example a unique abyss helmet from the boss, that can come with 1-2 abyssal sockets, but the chance to get one abyssal is a lot higher than the 2 abyssal sockets one, is there a breakpoint to get those?

6: The node Corrupted gaze on the passive tree, can give you a corrupted unique jewel? or is just a rare one with the 5-6 mods?

7: Does quantity and rarity from the area and from your character, gives you more drops from the abyssal depths boss?

Thank you.