You cant remove them, but when Lilycove Department Store has a clear-out sale, (which will only happen after you beat the Pokemon league challenge) you can buy wooden boards, which you can cover the holes up with and then walk over them.
You can't. But you can migrate Pokemon from Pokemon Emerald to the Pal Park in Pokemon Diamond, Pearl, Platinum, HeartGold, or SoulSilver and transfer them into Pokemon Black.
You can't. Yoshi is not a pokemon.
by going to the village and talking to the Pokemon
you have to send it from emerald to platnuim to black
It can repel wild Pokemon upon use.
In Hell next to the man in black
You can trade it from Pokemon Emerald. In Pokemon Emerald, when you find Rayquaza, there is a small chance that it is shiny when you find it. Save the game right before you fight him and keep trying until it turns black. Then catch it and trade it to Pokemon Diamond.
It's in Hoenn region. You can play it on Pokemon Sapphire, Ruby, and Emerald
the weather instadute
Not really. Sell them, or give them to Pokemon to hold.
No. You have to either get it in HeartGold or SoulSilver or transfer it from Emerald.
Yes. You can trade all pokemon except Deoxys for some odd reason