yes if they set spawn in the nether, but not many do
Use a spawn egg in creative or look for a nether fotress where they spawn.
You have to spawn it in, or re-generate your nether if you have a pre-1.5 map
Yes, in the Nether Zombie Pigmen spawn on the netherrack but I don't think they spawn on Netherrack in the Overworld.
Yes, mobs can spawn on netherrack in Minecraft. In the Nether, hostile mobs such as ghasts, blazes, and magma cubes can spawn on netherrack, provided the light level is low enough and other spawning conditions are met. However, passive mobs do not spawn in the Nether at all.
To get eggs that spawn animals in Minecraft PE on Survival Mode pawn use the command /give.
Yes, but the Pigmen and Ghasts won't spawn.
No mobs will spawn on peaceful, you may hear noises but they will be effects even on peaceful. the only entities that spawn in peaceful (not including the nether or the end) are players and animals unless, in the end or nether.
you spawn with them, even in survival
You can't, they are only spawned naturally. You can, however, use a spawn egg in creative mode to spawn them.
Slimes cannot spawn in the Nether in Minecraft. They are exclusive to the Overworld, where they spawn in specific biomes and under certain conditions, primarily in loaded chunks below Y-level 40. In the Nether, you would typically find different mobs and creatures, but slimes are not among them.
You can't. There are two Minecraft demos that I know of: one on minecraft.net, and the PC Gamer demo. Both are locked in survival mode, and in survival mode there is no way to spawn mobs.
There's a monster called a Blaze, they spawn in the Nether, in Nether Fortresses. Blaze Rods are their drop item.and Blazes you can find them in the Nether.and there spawn er. there from the fortress of it and when you put water you can kill it ,because its weakness is water.