You should download the mod that you want like christmass mods or else.
yes
You have to download the mod and instal it to have it in minecraft.Have fun.
you have to download the mod called "dinosuar mod" on minecraft
depends on the mod your downloading
yes you are allowed to mod mine craft you cane have hero brine mod or any other mod
this is not possible u need a mod to craft and use a scuba suit.
you need a mod called explosives + otherwise you can't
you must go to the aether by getting the aether mod mine some purple stuff and craft it like you craft a sword
You will have to install a mod which they will further explain on the download page
It's not a seed, it is a download able plug-in (MOD), made by the owner of "Mine craft"
The Single Player Commands mod has a function to use lightning. Check that out, but i saw it in a video and don't completely remember it. Hope I helped! :D
no you can download any mod for free, well at least all the ones i know