Because there is no way to measure the size you'll have to try it your self. At some point the ball gets too big to push and you have to leave it there.
Roll up two snowballs which is one bigger than the other and push the smallest one into the bigger snowball until the snowball goes ontop of the big snowball by itself and make sure that u push it into it hard :)
They are always placed randomly around your town, sorry :( Hope this helps;)
Snowball is a pig.
Assuming you mean what kind of animal. Snowball's a pig.
Snowball is a pig.
Snowball is a pig
No, you can't.
Snowball's archetype: Scapegoat
Using Animal Crossing Wild World you can't. However, using action replay there is a chance you can. But (and it's a BIG but) you can swim normally on animal crossing 3DS, which is yet to be released.
Ocean Sunfish come to the Sea in the summer. And, its not a big problem, but the true name is actually Animal Crossing City Folk, not Animal Crossing Lets go To the City.
Snowball
On the box where it says Animal crossing (the brown sign) look at the sign that is hanging from the big one and there it is.