Yeah, it’s kinda like one of those plasma globes (which are occasionally filled with Krypton)

Sure, in 3rd Openbound flash Horuss says he’ll “need to equip [his] steam powered deSTRENGTHening gloves” in order to give Damara a glass of milk

No

Krypton (the gas on Dirk’s planet) sinks and is located only at the base of the planet so when they are on top of the buildings they are safe and don’t need gas masks

That’s in reference to the legendary blade Caledfwlch that Dave’s gonna use. Caledfwlch is a Welsh name and is a sword capable of harming Lord English.

Canon

That’s a person, yes

Aranea describes him as a “passionate body builder” but whether or not he’s as strong as Equius is uncertain.

Their session was always meant to merge with the Beta kids’ session. Dave and Jade are their Time and Space players. 

Here.