Golbat doesn't evolve in pokemon red, blue or yellow. Generation II, and onward, if Golbat's happiness is high enough it will evolve into Crobat.
In Pokemon Yellow Onix does not evolve, it is a one stage Pokemon.
Yes, it will evolve through happiness.
You'll have to have it have high Happiness in order to evolve it.
You give it lots of happiness, then it will evolve into Swoobat.
For a togepi to evolve you need to give it 220 happiness
Golbat will not evolve in Yellow version.
you must do battles and there happiness goes and at some point they evolve.(P.Spokemon that evolve with happiness all evolve at a certain amount or number of happiness.)
In Pokemon Yellow Onix does not evolve, it is a one stage Pokemon.
All Pokemon evolve at different levels. However some require items to be held when evolving, evolution stones to be used or a certain happiness level to be reached.
To make your Pokemon happy all you have to do is train it regulary and make sure you heal its injuries quickly if you can. Giving it a poffin every now and then will help it to grow in happiness. I have used this process to make many Pokemon evolve that require happiness to evolve to the next stage, Golbat for example.
The Pokemon that will evolve through full happiness or maximum happiness are Cleffa, Igglybuff, Pichu, Riolu, Togepi, Golbat, Chansey, Azurill and Budew.
It shows how much the Pokemon is happy with you. In some Pokemon you can evolve it if it has high happiness.
You evolve it by raising it to maximum happiness.
You have to evolve it with happiness by batteling other pokemon with him/her
Yes, it will evolve through happiness.
Happiness is gained by taking care of your pokemon giving it items, training it and many more things. Once it's happiness reaches the max happiness have it level up to evolve the pokemon.
some of them require stones, and others require happiness