Because people make so much!!
There are so many different types because they are all used for different purposes in different situations.
Because there are so many different sorts of pathogens
The petroleum industry consists of so many different types of processes because so many different things can be made from petroleum.
Yes, shortbread cookies are traditionally associated with Scotland. They are a buttery and crumbly type of cookie that has its origins in Scottish baking.
Do you mean, why are there many different types of poems?
There are many different types of scientists because one person could not handle all the information of geology, astrology, and other types of science. Since there are numerous types of sciences, there has to be many different types of scientists, so there are many different scientists because there are many different sciences.
different enviroments lead to different types of them and also due to their diet
Many different moment throughout history created different forms
oh my word their is um um so many different types i cant believe you dont no ;)
There are many types of different weather, for example: rain, snow, hail, cloudy and so on....
Fungi is a kingdom.so there are so many species
There are so many different types of sludge that can be created. Sludge types can include but are not limited to chemical.