Dragonvale changes seasons in their updates. If you still have snow after winter has passed, check your app updates to see if DragonVale is included.
It will make a lichen dragon
Cold and lightning
Mountain
a earth dragon
Nope.
Lava dragon
There is no dragonvale for PC
combine blue fire and crystil to make moomdragon.
DragonVale is sometimes referred to as DV.
DragonVale does not have redeem codes.
No you can't sell the Nursery on DragonVale.
DragonVale is a free download in the Apple App Store.