yes
Mostly, not always, you just need to look inside the zip files and see if there are any double .class files.
All Minecraft mods are free, since they aren't made by Mojang. You can find tons of mods on the Minecraft Forums, just type it in Google and you'll find it. However, if you mean by 'easy-to-install' Minecraft mods, modpacks like the Yogbox come with a launcher that'll install all the files for you. Deep Space Turtle Chase, a custom map, installs the files automatically as well.
Not without mods (modifications). Mods are extra files that you put into your minecraft.jar folder, which can change the game completely.
just play minecraft
you can get minecraft mods and textures off the minecraft mods website.
Mods are free. Just download them and get them into your minecraft.jar.
No, you just get them for free
Yes, you can install as many mods as you want as long as they are compatible with each other. Some mods use the same .class files which basically means they aren't compatible. You will know if two mods are compatible with each other because your game will give you a black screen and you won't be able to play until the mods are deleted.
With mods yes however with just vanilla minecraft no.
you can mod minecraft by buying a u.s.b cable on a website then you plug it into your pc/xbox/ps3 and then go onto files and click on minecraft and you can download mods WARNING:ONLY SOME MODS ARE FREE yours sincerely lucy.mcparland@hotmail.com no caps
To install Minecraft mods on an Asus Nexus 7, first ensure you have the Minecraft Pocket Edition app installed. You'll need to download mod files compatible with the game, typically in .mcpack or .mcworld formats. Use a file manager app to locate the downloaded mod files and open them, which will prompt Minecraft to import the mods. Finally, launch Minecraft, create a new world, and select the imported mod from the settings to enable it.
A good way to get minecraft mods is to use Forge. With Forge, you can download mods of your choice instantly. Just download the Forge client, and you're good to go! :D